HG/T 20592  法兰 PL 200-40 RFSch800F Sch80h40 Sch80�mpampampa

PL200-40RFSch800F Sch80h40 Sch80�mpampampa

JWN 20×40-25 RF S=1010

JWN 15×40-25 RFch40¢â‚¬Â�

LWN 500-1500 RFJ Sch80/u00 s1 b0 RF-1

LWN 300-900 RJ Sch80s1 b=c:R

SO 10"-150 RF1-65 FM(A)-

2 CM 1800-0.6M S=l

WN 100-900 RJF Sch40SmH=37

SO