GB/T 12459  弯头 DN 80-Ⅱ-Sch40S90ESS=80h=145ÃƒÆ k=S=12.5 H

DN 80-Ⅱ-Sch40S 90ESS=80h=145ÃƒÆ k=S=12.5 H

WN20-150 RF S=7.0

SOP FF 5K 600A t=26.3

A BL1050-600RF15-20

WN50(A)-25 RF S=4.5

BI 700ุ�sse0s4040

DN150/PN16/32Bmch8S00-00 RF

WN80 -900 RJ

DPL250-10 RFfRFR/6RFh40.25F

bL250-16RFp;amp;amp;amp;