GB/T 12459  弯头 DN 65-Sch8090EL--1S=2

DN 65-Sch80 90EL--1S=2

2 CM 1600-1.020δ1=18

IF50-10 FF

1 C-RF 700-0.25 δs=8

PL80(B)-16 RF C=19

2 RF 1000-1.0 خ´1=20t

PL200-16RJR000pamotS 90E

WN500-25 RF S==00100 δ0=�40

PJ/SE 40(B)-10 RF

pl200b-16g5 &RJ0r906MFf/RFN RF I S=11�¸¢005=3��60