HG/T 20592  法兰盖 BL 500-16 RF.1

法兰盖BL500-16 RF.1

wn400(b)-16 fm sã¯â¼â10

WN20-150 RF Sch40 A=2

LWN25-150 RF=32/RF Sch80M1.0(6H6h=5 RF SCm

2 T 900-1.620δ1=8

WN 25-2500 RJ Sch 80S/

bii 190025 RF10RFrn80-F

WN80-600RFSCH80S96 D==150 K=1

SW 20-300RFRF300F35Sch.80S00c3f RF