GB/T 12459  弯头 DN 50-Ⅱ-890ESampampampampamp

DN 50-Ⅱ-8 90ESampampampampamp

WN600B)-25RFS40Sh4

DN 100-Ⅱ-Sch160 90ES

SOP FF 10K 80A

PL 150(B)-25 RF b=1

SO 150(B)-16 RF

TPB-4 RF r400c�0 RF43.54j150â

A WN 4"-900 LM

HG/T20592-2009 WN25(B)-40 M RFJ-R9eS-RFWN S25F HG/T 20615-20090Fh806@40