HG/T 20592  法兰 PL 250-6 RF150 RF RF S/asm-mpampaF S

PL250-6RF150 RF RF S/asm-mpampaF S

WN80-300RFS=5.49F Sch

1 FF 1900-0.25022ct0bsp

LWN25-150 RFSCH8

BI 1100RF2RJSc125RF/40-3050 RF RF S/asm/T206150(b)-2.5

3 RF500-1.6

lwn 80-150 rf sF10/58h4 s 700-6RF150 RF R

47022fm600-2.50

WN15(B)-160RFRF-16 T0-1.6/8