HG/T 20592  法兰 PL 300(B)-16 RF371RF2@R

PL 300(B)-16 RF371RF2@R

WN 50-150 RF3952RFTj@5c2@RF@443RF°F1Ff@4150 FFF5 RF

BL250(B)-150 RF0

LWN 25-150 RF H=2410

BII 476

LWN50-300 RF Sch40 H=2150 SO FF=3F Sch0.6B)-40m00f1001F=2

PL 300(B)-16 RF2939

BWN 800-150 RF Sch-40RF

WN50-160M S=4=内孔=8.51