GB/T 12459  弯头 DN 20-Ⅱ-390ES66

DN 20-Ⅱ-3 90ES66

PL100-16 rf3mpquotHG20

SO80-25 RF SC.6Fn350� A

wn600-16rfc/fo-16 Mu00c2=295RJ B=2 Spved=0a10 f

WN250(B)-10 M S=60F5/909mmMFM S0 R-85

LWN15-150 RF Sch兰盖BL60

SW 80-150 G7G/Th40M STf0-1mpdefine

WN 350(B)-10 G S=106

BI1000ch10s3