GB/T 12459  异径三通 DN 500×500×20-Sch30TR

DN 20×20×500-Sch30 TR

PL80-6 RJ

21520PL500(B)-10RF= RFFÃ00(B)-10 R RJ SchhÃ=20

Bl500b-10rfch5140-12-2

PL 600(B)-16 RF RF1n350F D=175=18L

SO 20-16 RFd=102-110=r5bWN/-1

bl500-10rf-16rf51.2mo203103 FMtc

WN150B-150 RF/l5ãâ€fx120

SO4-150RFum.htm