GB/T 12459  弯头 DN 100-590EL0rf�R5h.8�H280fC0

DN 100-5 90EL0rf�R5h.8�H280fC0

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PJ/SE 40(B)-16 RF RF54et/admin

BI 600FMF S=6S0RFFM

PL50(B)-25 FF0-1630h40ERF

LWN150-25RF0 RFch80sRF SCRS.5u00bf/u

WN80-150 RF Sch1 RF6152s R==801

WN 400(B)-10 FF S=7.5

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