VALVE,BUTTERFLY;WAFER;8IN;EPDM;KEYSTONE

KEYSTONE光杆蝶阀400A 450A  光杆蝶阀材质说明-----阀体-铸铁，阀板-316SS，阀座-NBR   

keystone蝶阀 22W DLT150蝶阀 GRWT119蝶阀 Keystone气动蝶阀

DN200 GRW T119 PN10 F89U-032 DA+LP

DN200GRWT119PN10F89U-032DA+LP  GRWT119PN10气动蝶阀

GRW0400-D0S1S2E0M1K蝶阀

keystone蝶阀GRW0125-D0S1S0E0M1KDN125+F89U020DA

GRW080-DOVOV0E0M1K  DN80 PN16+F89U-009SR08+791D +TXD-400

keystone气动调节蝶阀GRW DLT500-D0S0S0E0M1K(PN10) +F89U-240DA +6DR5120-0NG00-0AA0 +ASCO 652

keystone双相不锈钢蝶阀 keystone超级双相不锈钢蝶阀 艾默生keystone气动蝶阀GRW0300-DOUOUOEOA1K

keystone气动蝶阀GRW0300-DOVOV0E0A1K+F89U051DA  GRW0300-DOVOV0E0M1K

keystone气动蝶阀GRW0125-D0S0S0E0M1KDN125+F89U020DA

GRW DN100 PN16 wafer manual