GB/T 12459  异径三通 DN 50×50×25-Sch40STR

DN 50×50×25-Sch40S TR

BL 400-16 RF

WN 350(B)-16 RF

SO300(B)-25 FM法兰盖

DN200-PN10 PL FF II

B WN 700-150 RF S=7.1

SO 500-150 RF

WN200-600 RF S=6

A WN1000-300 RFFM RF

BL 1"-150 RF606RFn40-16rf300 RF Sch80SR1@яПН5..016p@Т�a/a3RFm/F3chrf