GB/T 12459  偏心异径管 DN 900×10-Sch140RE10

DN 900×10-Sch140 RE10

pl500(b)-6 rfa Sch40 RF

B WN 700-600 RF Sch40S

DN700-PN16 PL FF

LWN1"-150RF B=27 H=165

LWN65-600RJ

pl32b-25rf2ä

WN80(B)-16 RF SCH40S RF10sSch40 HS=121F68 S.6110S0-

BL50-300 RF 1RFFp12B@40l Sc5 RJ21295@F SHC80S V

BI 406S