GB/T 9124.1  法兰 DN800-PN63 SO RF Ⅰ в…Ў

DN800-PN63 SO RF в…Ў

BL 20"-300 RF

so200(B)-16RFm 20s=4gS

WN 2 1/2"-150 RF Sch80S

WN 15(B)-16 RF S=3

SO 200-150 RF

3 B5h40su00c6/u0092/u00c3/u008

WN 40-300 RJ S=40-600RFrSchRF Sch4

WN25-25RF S=3 f3=3 f2=4

BL 3/4"-300 RF�²ز–ز£