GRW蝶阀DN100光杆蝶阀KEYSTONE阀门 一种高负载工业弹性阀座蝶阀 对夹及支耳式阀体设计,结构长度尺寸符合 EN 558 20系列及API 609。
keystone对夹式蝶阀 GRWDLT100蝶阀 GRWDLT200蝶阀 GRWDLT150蝶阀Emerson蝶阀价格 凯斯通keystoneGRW蝶阀 GRW阀座 GRW密封圈 GRWD0S0S2E0A1K 凯世通蝶阀F14-102-D12EDN200蝶阀 GRW0250D0S0S2E0M1K keystone蝶阀GRW DLT250 D0S0S2E0M1K Keystonevalves & Controls OPTISEAL014-102 GJS-400-15DN80现货keystone气动蝶阀 GRWDLT200+F89U020DA GRWD0S0S2E0 A1 K + F89U-014SR08 keystone支耳式蝶阀GRL0300-D0S0S2E0P3K keystoneGRL 0250 D0A1S2N0A1K 蝶阀 keystone蝶阀 GRL蝶阀GRL0300-D0S0S2E0P3K GRW蝶阀 keystone气动蝶阀GRWDLT80D0S0S2E0M1K+F89U-006DA GRWDLT50 D0S0S2E0M1K +F89U-004DA GRW DLT100 D0S0S2E0M1K+F89U-006DA keystone支耳式蝶 GRLD12N DLT100 + f89u-014DA 凯斯通支耳式蝶阀 F16-177 DLT100 + (新)F89E-014DA
keystone手动涡轮蝶阀GRL0400D2A1S2NA1KG1
keystone光杆蝶阀GRWDLT150 D12E PN10,GRWDLT125 D12E PN10 keystone蝶阀 GRW蝶阀 GRWDLT蝶阀
keystone蝶阀 GRWDLT100+F89U009DA
keystone手动涡轮蝶阀 GRL 0400 D2A1S2NA1KG1
Keystone自动蝶阀 PETGA-TC-GRW100
GRW/DLT200+F89U/020DA+CR+791D(HFB)GRW/DLT150+F89U/014DA+CR+791D(HFB)
GRW/DLT65+F89U/004DA+CR+791D(HFB)
GRW/DLT50+F89U/004DA+CR+791D(HFB)KV/L6G/DLT50+F89U/004DA+CR+791D(HFB)
GRW//DN450+AW20S+HW+F793气动蝶阀