GB/T 12459  弯头 DN 40-Sch4090EL=10 H=16

DN40-Sch40 90EL=10 H=16

WN80(B)-25RF S=58

wn25b-16rf S=30mAmjbr1=44060

SO80(B)-16RFFb=3FRF)-1

PL80-10RF AA=591= δ=64-f/@BI50 RF S0 s=10rjtF.

BL10(B)-160 RF400rf s=

WN400-300 RF A=/0F S

WN20B-600RF╨ÀΓêÕΓ�

BI 500Sch1609XX60jN30-50

so 300-150