HG/T 20592  法兰 PL 250-16 RF0RFRFwn5s=rf b=3

PL250-16 RF0RFRFwn5s=rf b=3

wn200-150rf sch60f0 pl1H=155h41=3/

BL 100-16 RF

A WN1200-150 RF0F RFF b=4-40FMN40-150 RF S=6.0 RF B=78

PL25(B)-16 FF B=

WN700(B)-16RF S=80-ҘР‘

SO 80-150 RF

wn250-150rfsch.40t

SO 2"-150 RF

WN200-150 Rj Sch160/.