中线蝶阀 选购指南
Keystone蝶阀 GR0200W0A10016D1S00S0N000KBNP1TPZGS001蝶阀
Keystone蝶阀 GR0200W0A10016D1S00S0N000KBNP1TPZGS001蝶阀 keystone手动涡轮蝶阀 GRL0400 D0A1S2N0J5KG1 GRW 0450 D0-A1-S2-N0-J5-K-G1 主要用于管道流体的开关,和调节,软密封,中线蝶阀,可配手动操作机构,气动操作机构电动操作机构 GRW蝶阀GRW0600-DOUOUOEOA1K GRW蝶阀GRW0600-DOVOVOEOA1K F89U气缸 keystone蝶阀 DN200 PN10 GRW0200-D0S0S2E0M......