GB/T 12459  等径四通 DN 150-Sch80CRS RF Sch40S� вҖ0r

DN 150-Sch80 CRS RF Sch40S� вҖ0r

DN300-PN10 WN RF S=8

PL125(B)-10 rF BB=134 C=10sG/

wn350-40rj0RF0

WN150(B)-160 FM196-3.0/

pl150-25 RF RFF0RF2CH80F/061540 s=3.665(b)-

HG/T20592-2009 BL200-40M

wn80b-100tF��26 δ=3

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