HG/T 20592  法兰盖 BL 300-6 RF834

BL300-6 RF834

3 B4852

LWN25-150 RF H=27

WN15B-2500 RJ N=38.1 K=69.8

WN 32(B)-25 RF Sch40S

WN 125(B)-10 RF S=3

BL 700(B)-10 RF

SO100(B)-16 RF6f sch80rf06 B20

PL40(B)-10 RF B1=49 f1=3

47065.4 A273550 RF@RF8@RF8F0RF20-150-2009 Srf0rf s=100RFmpampamp