products overview -...

Coreline

产品总目录 Products overview

无锡科磊阀业有限公司 WUXI CORE LINE VALVE CO .,LTD

专注于技术及质量 coreline focus on technique and quality Coreline

Coreline 品牌于 1986 年在德国注册，专注于制造先进的、高品质的阀门及控制系统。

Coreline 产品以独特的设计，精湛的制造工艺永远追求近乎完美的运行可靠性，这使得 coreline 的产品在全

世界范围内享有很高的声望。产品质量通过了以严格著称的挪威船级社 DNV 的 ISO9001 及 PED CE 认证，产品表面处

理 NORSOK 海事认证，德国 DVGW 燃气与供水工程联合会认证，英国 WRAS 水务研究中心饮用水指标认证，美国 FDA 食

品及医药协会认证及中国船级社 CCS，英国劳氏船级社 LR，法国船级社 BV 的船用认证。

迄今为止 coreline 产品已广泛应用于石化、电力、钢铁冶金、生物制药、造纸、微电子、食品饮料、船舶、水

处理等行业。

在过去的几年中，coreline 在中国的业务迅速拓展，coreline 将永远致力于为广大客户提供雄厚的技术支持与

专业优质的服务。

Coreline brand has been registerated in Germany and focused on high quality of valves and their actuators. Coreline always pursue perfect reliability with special design and accurate manufacturing process,this has made Coreline’s product hold a high reputation worldwide.Quality system of ISO 9001 certified by the well know strict independent foundation DNV,also PED CE ， Valve surface quality in line with NORSOK marine requirements，Valve rubbers have approval of DVGW、KTW、WRAS and FDA.Valve also marine approved with CCS、LR、BV. So far Coreline’s products have been used in petrochemical,power plant,steel metallurgy, pharmaceutical,paper,microelectronics,food and beverage,marine,water treatment and other industries.

打压现场安装阀座铸造现场加工中心质量检测

2 coreline focus on technique and quality

蝶阀 Butterfly valve Coreline

Figure 223

对夹软密封蝶阀 Wafer type soft seated butterfly valves

□ 独一无二的斜坡阀座，实现中线蝶阀结构，

偏心蝶阀效果，蝶板与阀座之间无磨擦

□ 独一无二的带沟槽橡胶靠背，使阀门扭矩减小 20％－30％,

回弹性及寿命是同类高质量阀门的 1.5 倍

□ 多标准校正孔适合国标、美标、英标、日标等多种法兰

□ V 型阀轴密封圈，防止任何泄露的可能

□ 不锈钢防窜挡圈，确保终身安全

□ 双段轴阀板，密封面球型设计，确保低扭矩、大流量、长寿命

尺寸范围： 2”至 56”

压力范围：全真空至 20bar

适合法兰: 国标或 EN1092 PN10/PN16 & ANSI 125/150 & BS10 表 D/E&JIS10K/16K (2”至 12”)

国标或 EN1092 PN10/PN16 & ANSI 125/150 & BS10 表 D/E(14”至 24”)

根据要求 (28”至 56”)

结构长度: EN558 系列 20, API609

阀体材质: 灰铸铁、球墨铸铁、碳钢、不锈钢

阀板材质: 不锈钢 201、不锈钢 304、不锈钢 316、铝青铜、哈氏合金、双相钢、超级双相钢

阀座材质: 丁腈 NBR、三元乙丙 EPDM、耐油耐酸碱氟橡胶 VITON-A、耐蒸汽氟橡胶 VITON-B、

海伯伦橡胶 HYPALON、聚四氟乙烯 PTFE ★ 拥有卫生及安全证书: 美国食品及医药协会 FDA、英国水务研究中心 WRAS、德国气体与水协会饮用水认证 DVGW、德国饮用水认证 KTW,欧盟压力容器认证。 □ Unique wave line rubber seat, makes the concentric butterfly valve work similar to eccentric butterfly valve,reduces the friction between disc and rubber □ Unique groove inside rubber back,reduces the torque of valve 20% to 30%, enhances the flexibility and life time of the seat 50% more □ Multi-standard alignment holes, Suitable for flange of EN1092 PN10, PN16, ASME CLASS125/150, BS10 TABLE D, TABLE E and JIS B2239 10K,16K □ V-type ring around stem, prevent any leakage possibility □ Stainless steel plate, ensures whole life proof of stem blow-out □ Disc with two-piece shaft construction, enhance the flow capacity of the valve， The shape of the disc provides lower torque and prolongs the life span of the valve Size Range: 2”to 56” Pressure Rating: Full vacuum to 20bar Flange accomodation: EN1092 PN10/PN16 & ANSI 125/150 & BS10 Table D/E&JIS10K/16K for

2”to 12”EN1092 PN10/PN16 & ANSI 125/150&BS10 Table D/E for 14”to 24” Face to Face: EN558 Basic series 20,API609 Body: Cast iron,Ductile iron,Carbon steel,Stainless steel Disc: SS201,SS304，SS316，SS316L，Aluminium Bronze,Hastelloy,Dual steel,Super dual steel. Seat: NBR,EPDM,Oil&Acid&Alkali resitant VITON-A,Steam resitant VITON-B,Hypalon,PTFE. ★ With health and safety certificate: FDA,WRAS,DVGW,KTW,PED-CE. 3

coreline focus on technique and quality 3

蝶阀Butterfly valveCoreline

Figure 224

凸耳软密封蝶阀 Lug type soft seated butterfly valves

□ 橡胶直接硫化在阀体上,即使在末端管路,也能承受全压力

□ 连接螺纹孔可根据要求加工

□ 其余结构均与 223 系列相同

尺寸范围： 2”至 56”

压力范围：全真空至 20bar

适合法兰: 国标或 EN1092 PN10/PN16 或 ANSI 125/150

结构长度: EN558 系列 20, API609

阀体材质: 灰铸铁、球墨铸铁、碳钢、不锈钢

阀板材质: 不锈钢 201、不锈钢 304、不锈钢 316、铝青铜、哈氏合金、双相钢、超级双相钢

阀座材质: 丁腈 NBR、三元乙丙 EPDM、耐油耐酸碱氟橡胶 VITON-A、耐蒸汽氟橡胶 VITON-B、

海伯伦橡胶 HYPALON

★ 拥有卫生及安全证书: 美国食品及医药协会 FDA、英国水务研究中心 WRAS、

德国气体与水协会饮用水认证 DVGW、德国饮用水认证 KTW,欧盟压力容器认证。 □ Rubber vulcanized to valve body,stands on full pressure even at the end of pipe □ Lug bolt holes can be machined according to requirement □ Other Features same as 223 series Size Range: 2”to 56” Pressure Rating: Full vacuum to 20bar Flange accomodation: EN1092 PN10/PN16 OR ANSI 125/150 Face to Face: EN558 Basic series 20,API609 Body: Cast iron,Ductile iron,Carbon steel,Stainless steel Disc: SS201,SS304，SS316，SS316L，Aluminium Bronze,Hastelloy,Dual steel,Super dual steel. Seat: NBR,EPDM,Oil&Acid&Alkali resitant VITON-A,Steam resitant VITON-B,Hypalon. ★ With health and safety certificate: FDA,WRAS,DVGW,KTW,PED-CE.


Coreline 蝶阀 Butterfly valve

Figure 263

E 高性能偏心对夹蝶阀

High performance wafer eccentric butterfly valves

□ 阀板与阀座完全接触式密封，更高压力，更低磨损

□ 独特设计及精密加工使得阀门的扭矩更低

□ 上下游双向密封

□ 设计中考虑了对温度变化的补偿

尺寸范围： 2”至 60”

压力范围： CLASS150,CLASS300,PN20,PN50

适合法兰: 美标 CLASS150,CLASS300,国标 PN16,PN25,PN40

结构长度: API609B

阀体材质: 碳钢、不锈钢、哈式合金、双相钢、超级双相钢

阀板材质: 碳钢、不锈钢 SS304、不锈钢 SS316、哈氏合金、双相钢、超级双相钢

阀座材质: PTFE、碳纤维强化 PTFE,SS316+PTFE（防火型） □ Disc and seat sealing fully by touching,higher pressure and lower friction □ Special design and accurate manufacturing make the valve torque lower than normal others □ Bi-directional sealing □ Changes of temperature have been considered when design Size Range: 2”to 60” Pressure Rating: CLASS150,CLASS300,PN20,PN50 Flange accomodation: PN16,PN25,PN40,ANSI CLASS150,300 Face to Face: API609B Body: Carbon steel,Stainless steel,Hastelloy,Dual steel,Super steel Seat: PTFE,Reinforced PTFE,SS316+PTFE(Fire-Tite) coreline focus on techniqu e and quality 5


蝶阀Butterfly valveCoreline

Figure 264

高性能偏心凸耳蝶阀 High performance lug eccentric butterfly valves

□ 阀板与阀座完全接触式密封，更高压力，更低磨损

□ 独特设计及精密加工使得阀门的扭矩更低

□ 上下游双向密封

□ 设计中考虑了对温度变化的补偿

□ 凸耳设计适用于不使螺栓暴露场合及终端管路

尺寸范围： 2”至 60”

压力范围： CLASS150,CLASS300,PN20,PN50

适合法兰: 美标 CLASS150,CLASS300,国标 PN16,PN25,PN40

结构长度: API609B

阀体材质: 碳钢、不锈钢、哈式合金、双相钢、超级双相钢

阀板材质: 碳钢、不锈钢 SS304、不锈钢 SS316、哈氏合金、双相钢、超级双相钢

阀座材质: PTFE、碳纤维强化 PTFE,SS316+PTFE（防火型） □ Disc and seat sealing fully by touching,higher pressure and lower friction □ Special design and accurate manufacturing make the valve torque lower than normal others □ Bi-directional sealing □ Changes of temperature have been considered when design □ Lug type suitable for case of not exposing bolt or end of pipe Size Range: 2”to 60” Pressure Rating: CLASS150,CLASS300,PN20,PN50 Flange accomodation: PN16,PN25,PN40,ANSI CLASS150,300 Face to Face: API609B Body: Carbon steel,Stainless steel,Hastelloy,Dual steel,Super steel Seat: PTFE,Reinforced PTFE, SS316+PTFE(Fire-Tite)


蝶阀 Butterfly valve Coreline

Figure 225

双片体蝶阀 2 PC butterfly valves

□ 阀座背面带碟形弹簧，保证在高腐蚀性介质时无任何泄漏

□ PTFE 内衬，耐磨损，耐高腐蚀性介质

□ 橡胶靠背保证阀座弹性，不同橡胶材质满足不同温度范围

尺寸范围： 2”至 24” 压力范围： 16bar

适合法兰：国标或 EN1092 PN10/PN16 或 ANSI 125/150

结构长度： EN558 系列 20, API609

阀体材质：球墨铸铁、碳钢、不锈钢

阀板材质： PTFE、不锈钢 304、不锈钢 316、铝青铜、哈氏合金、双相钢、超级双相钢

阀座材质： PTFE 丁腈靠背、PTFE 乙丙靠背、PTFE 硅胶靠背、PTFE 氟橡胶靠背 □ Spring loaded on back of seat,prevent any leakage even under high corrosion. □ PTFE liner, low friction and resitant to high corrosion □ Rubber back ensures flexibility and diffrent rubber for diffrent temperature range Size Range: 2”to 24” Pressure Rating: 16bar Flange accomodation: EN1092 PN10/PN16 OR ANSI 125/150 Face to Face: EN558 Basic series 20,API609 Body: Ductile iron,Carbon steel,Stainless steel Disc: PTFE, SS304，SS316，SS316L，Aluminium Bronze,Hastelloy,Dual steel,Super dual steel Seat: PTFE with NBR back,PTFE with EPDM back,PTFE with Silicon back,PTFE with VITON back

Figure 240

双法兰蝶阀 Double Flanged butterfly valves

□ 连接稳定性高，特别适合地下安装或热变化频繁的场合

尺寸范围： 2”至 120” 压力范围： 10bar-16bar


结构长度： EN558 系列 13 阀体材质：灰铸铁，球墨铸铁

阀板材质：不锈钢 201、不锈钢 304、不锈钢 316、铝青铜、哈氏合金、双相钢、超级双相钢

阀座材质：丁腈 NBR、三元乙丙 EPDM、耐油耐酸碱氟橡胶 VITON-A、耐蒸汽氟橡胶 VITON-B、

海伯伦橡胶 HYPALON

□ Stable connection,especially suitable for underground installation and frequent changes in temperature Size Range: 2”to 120” Pressure Rating:10bar-16bar Flange accomodation: EN1092 PN10/PN16 OR ANSI 125/150 Face to Face: EN558 Basic series 13 Body: Cast iron,Ductile iron Disc: SS201, SS304，SS316，Aluminium Bronze, Hastelloy, Dual steel, Super dual steel Seat: NBR,EPDM,Oil&Acid&Alkali resitant VITON-A,Steam resitant VITON-B,Hypalon


止回阀Check valveCoreline

Figure 6140

薄型旋启式止回阀 Thin wafer swing check valves

Figure 6141

带弹簧薄型旋启式止回阀 Spring loaded Thin wafer swing check valves

□ 结构紧凑、无人 CNC 加工确保性能卓越 □ 开启角度充分，低压力损失

□ 零泄漏 □ 加载弹簧后关闭迅速，可有效避免水锤

尺寸范围： 1.5”至 24” 压力范围： 10 bar - 25 bar

适合法兰：国标或 EN1092 PN10/PN16/PN25 或 ANSI 125/150 或 JIS20K

结构长度：工业标准阀体材质：碳钢、不锈钢、铝青铜

阀板材质：不锈钢 201、不锈钢 304、不锈钢 316、铝青铜

阀座材质：丁腈 NBR、三元乙丙 EPDM、耐油耐酸碱氟橡胶 VITON-A、

耐蒸汽氟橡胶 VITON-B、海伯伦橡胶 HYPALON、聚四氟乙烯 PTFE、硬密封 □ Small demensions and weightness,but perfect performance. □ Enough opening angle, low head loss □ Zero leakage □ Quick close after spring loaded, well prevent to water hammer Size Range: 1.5”to 24” Pressure Rating:10bar-25bar Flange accomodation: EN1092 PN10/PN16 OR ANSI 125/150 OR JIS20K Face to Face: Industrial standard Body: Carbon steel,Stainless steel,Aluminium Bronze Disc: SS201,SS304，SS316，Aluminium Bronze Seat: NBR,EPDM,Oil&Acid&Alkali resitant VITON-A,Steam resitant VITON-B,Hypalon,PTFE.Metal to Metal Figure 612

双瓣止回阀 Dual Wafer check valves

尺寸范围： 2”至 48” 压力范围： 10bar - 50 bar

适合法兰：国标或 EN1092 PN10/PN16/PN25/PN40 或 ANSI 125/150/300

结构长度： EN558 系列 16, API594 阀体材质：灰铸铁、球墨铸铁、碳钢、不锈钢、铝青铜

阀板材质：球铁镀镍、不锈钢 201、不锈钢 304、不锈钢 316、铝青铜

阀座材质：丁腈 NBR、三元乙丙 EPDM、耐油耐酸碱氟橡胶 VITON-A、耐蒸汽氟橡胶 VITON-B、硬密封

Size Range: 2”to 48” Pressure Rating:10bar-50bar Flange accomodation: EN1092 PN10/PN16/PN25/PN40 OR ANSI 125/150/300 Face to Face: EN558 Basic series16, API594 Body: Cast iron,Ductile iron,Carbon steel,Stainless steel,Aluminium Bronze Disc: Ductile iron Nickle plated,SS201,SS304，SS316，Aluminium Bronze Seat: NBR,EPDM,Oil&Acid&Alkali resitant VITON-A,Steam resitant VITON-B,Metal to Metal 8 coreline focus on technique and quality

球阀 Ball valve Coreline

Figure 181

对焊一体式焊接球阀 Welding connection fully welded ball valve

□ 一体式焊接，无任何外泄点 □ 可根据管道施工及设计要求，调整阀门的长短和阀杆的高度 □ 阀座支撑处弹簧设计，在保证阀门正常操作使用的情况下，寿命达到 20 年以上尺寸范围： 3/8”至 36” 压力范围： 10bar-40bar 阀体材质：碳钢、不锈钢阀球材质：不锈钢 SS304、不锈钢 SS316 阀座材质：碳纤维强化聚四氟乙烯 □ Fully welded,no outside leakage point □ Face to face and stem height can be adjusted according to construction and design □ On back of seat,there is spring as support,in case of correct operation,lifetime about 20 years Size Range: 3/8”to 36” Pressure Rating: 10bar to 40bar Body: Carbon steel,Stainless steel Ball: SS304，SS316 Seat: Carbon reinforced PTFE

Figure 182

法兰一体式焊接球阀 Flanged connection fully welded ball valve

Figure 183

螺纹一体式焊接球阀 Screwed fully welded ball valve


球阀Ball valveCoreline

Figure 184

长杆天然气焊接球阀 Long connection fully welded ball valve

Figure 184

直埋式焊接球阀 Bury type fully welded ball valve

Figure 184

短体法兰焊接球阀 Flanged short fully welded ball valve


Valves with a difference

球阀 Ball valve Coreline

Figure 1101

不锈钢一片体螺纹连接球阀 1-PC screwed ball valve

尺寸范围： 1/4”至 3” 压力范围： PN60(1000PSI) 阀体材质：不锈钢 SS304、不锈钢 SS316 阀球材质：不锈钢 SS304、不锈钢 SS316 阀座材质：强化 PTFE Size Range: 1/4”to 3” Pressure Rating: PN60(1000PSI) Connecting screw: NPT,BSPT Body: SS304，SS316 Ball: SS304，SS316 Seat: RPTFE

Figure 1201

不锈钢两片体螺纹连接球阀 2-PC screwed ball valve 尺寸范围： 1/4”至 4” 压力范围： PN60(1000PSI)

阀体材质：不锈钢 SS304、不锈钢 SS316

阀球材质：不锈钢 SS304、不锈钢 SS316

阀座材质：强化 PTFE Size Range: 1/4”to 4” Pressure Rating: PN60(1000PSI) Connecting screw: NPT,BSPT Body: SS304，SS316 Ball: SS304，SS316 Seat: RPTFE Figure 1301

不锈钢三片体螺纹连接球阀 3-PC screwed ball valve 尺寸范围： 1/4”至 4” 压力范围： PN60(1000PSI)



阀座材质：强化 PTFE Size Range: 1/4”to 4” Pressure Rating: PN60(1000PSI) Connecting screw: NPT,BSPT Body: SS304，SS316 Ball: SS304，SS316 Seat: RPTFE

11co nd quality reline focus on technique a

球阀Ball valveCoreline

Figure 1102

不锈钢一片体法兰连接球阀 1-PC Flanged ball valve

适合法兰：国标或 EN1092 PN16/PN25/PN40

尺寸范围： 1/2”至 8” 压力范围： PN16-PN40



阀座材质：强化 PTFE Flange accomodation: EN1092 PN16/PN25/PN40 Size Range: 1/2”to 8” Pressure Rating: PN16-PN40 Connecting screw: NPT,BSPT Body: SS304，SS316 Ball: SS304，SS316 Seat: RPTFE Figure 1202

不锈钢两片体法兰连接球阀 2-PC Flanged ball valve 适合法兰：国标或 EN1092 PN16/PN25/PN40




阀座材质：强化 PTFE Flange accomodation: EN1092 PN16/PN25/PN40 Size Range: 1/2”to 4” Pressure Rating: PN16-PN40 Connecting screw: NPT,BSPT Body: SS304，SS316 Ball: SS304，SS316 Seat: RPTFE

Figure 1302

不锈钢三片体法兰连接球阀 3-PC Flanged ball valve 适合法兰：国标或 EN1092 PN16/PN25/PN40




阀座材质：强化 PTFE Flange accomodation: EN1092 PN16/PN25/PN40 Size Range: 1/2”to 4” Pressure Rating: PN16-PN40 Connecting screw: NPT,BSPT Body: SS304，SS316 Ball: SS304，SS316 Seat: RPTFE


Valves with a difference

气动执行器 Pneumatic actuator Coreline

Figure 5050

双作用气动执行器 Double acting peneumatic actuator

□ 开关均有气压推动实现

□ 开关极限位置可调

□ 高精度加工，长寿命

尺寸范围： 40mm 至 270mm 扭矩范围：8N M-3000N M

连接尺寸：ISO5211

壳体材质：铝合金（6005-T5），不锈钢 SS304

活塞材质：压铸铝（101A），不锈钢 SS304

密封圈材质：丁腈橡胶，氟橡胶 □ Opening or closing acting by air pressure □ Both opening and closing limit positions are adjustable □ Accurate manufacturing insures long life time Size Range: 40mmto 270mm Torque Range: 8N M-3000N M Connection: ISO5211 Shell material: Extruded aluminium alloy(6005-T5) Piston material: Die-casting aluminium(101A) Sealing material: NBR,VITON

Figure 5051

单作用气动执行器 Single acting peneumatic actuator

13co nd quality reline focus on technique a

其他OthersCoreline

Figure 411

刀型闸阀 Knife gate valves □ 明杆或暗杆 □ 对夹连接，结构紧凑

尺寸范围： 2”至 24” 压力范围： 10 bar


阀体材质：灰铸铁、球墨铸铁、碳钢、不锈钢

阀板材质：不锈钢 201、不锈钢 304、不锈钢 316

阀座材质：丁腈 NBR、三元乙丙 EPDM、耐油耐酸碱氟橡胶 VITON-A □ Rising or non rising stem □ Wafer type, low weightness Size Range: 2”to 24” Pressure Rating: 10bar Flange accomodation: EN1092 PN10/PN16 OR ANSI 125/150 Body: Cast iron,Ductile iron,Carbon steel,Stainless steel Disc: SS201,SS304，SS316 Seat: NBR,EPDM,Oil&Acid&Alkali resitant VITON-A

Figure 901

螺纹连接软接头 Screwed rubber expansion joints 尺寸范围： 1/2”至 3” 压力范围： 16 bar

连接螺纹： BST 或 NPT 内螺纹

主体材质：丁睛，乙丙，氯丁内衬：尼龙帘子布

骨架：钢丝网连接头：可锻铸铁镀锌 Size Range: 1/2”to 3” Pressure Rating: 16bar Connection: BST or NPT female thread Main body: NBR,EPDM,CR Lining: Nylon cord fabric Frame: Steel wire Threaded end: Galvanized Malleable iron

Figure 902

单球法兰连接软接头 Single Spherical flanged rubber expansion joints

Figure 912

双球法兰连接软接头 Double Spherical flanged rubber expansion joints

尺寸范围： 1 1/4”至 24” 压力范围： 16 bar

连接法兰：国标或 EN1092 PN10/PN16 或 ANSI 125/150

主体材质：丁睛，乙丙，氯丁内衬：尼龙帘子布

骨架：钢丝网法兰：碳钢环氧喷涂 Size Range: 1 1/4”to 24” Pressure Rating: 16bar Flange: EN1092 PN10/PN16 OR ANSI 125/150 Main body: NBR,EPDM,CR Lining: Nylon cord fabric Frame: Steel wire Flange: Carbon steel powder epoxy painted


过滤器 Filter Coreline

Figure 6540

Y 型过滤器 Y type strainer

□ 过滤器两端有压力表接口，可以连接压力表根据压差推断

滤网内污物沉淀情况

□ 在端盖下部设计有排污小孔，可以不必拆卸端盖直接排污

□ 流通面积大 □滤网强度高

尺寸范围： 2”至 16” 压力范围： 16bar

阀体材质：灰铁

滤网材质：不锈钢 SS304、不锈钢 SS316 □ Pressure gauge interfaces exist in inlet and outlet point of strainer,when gauge connected, dirty amount can be calculated according to the pressure difference □ Sewage hole exist in lower part of cover,sewage removal directly achieved by the hole without cover removal □ Large flow area □ Strong filter inside Size Range: 2”to 16” Pressure Rating: 16bar Body: GG25 Disc: SS304，SS316

15coreline focus on technique and quality

Coreline WUXI CORE LINE VALVE CO.,LTD. Add:No.210 Xinyuan Road,E Hu Industrial Park,WuXi,P.R.China

Tel(wuxi):86 510 80257770

Fax(wuxi):86 510 80257770

Tel(shanghai):86 21 51691656

Fax(shanghai):86 21 51062285

Http://www.clval.cn

E-mail:[email protected]

无锡科磊阀业有限公司地址：无锡市锡山区鹅湖工业园新园路 210 号

电话（无锡）：0510 80257770

传真（无锡）：0510 80257770

电话（上海）：021 51691656

传真（上海）：021 51062285

网址（无锡）：www.clval.cn

邮箱：[email protected]

View Products

View Company Profile

View Catalog

Related Products:

Disclaimer: This Brochure is provided by this particular member. TradeKey.com will not be responsible or liable for any content posted by our members.

Wuxi Core line Valve Co., ltd

2pc valves, butterfly valves, valves

http://www.tradekey.com/profile_view/uid/4703140/.htm

http://www.tradekey.com/product_view/id/1515347/.htm

products overview -...

Documents