GB/T 12459  弯头 DN 600-Ⅱ-890ELt

DN 600-Ⅱ-8 90ELt

WN100(B)-1500 RF1amp9/5@PF@4-4.0sh1F�15H&scampSRF0

pl500a-16rf/u00mb

BI 750S89mmF0

2 RF 1000-1.6 δ1=8

WN50-150RF2.525)

WN 50(B)-40 RF RERSrf250r1.600SF00rf-1Sch40SB-r5FM6rf/

jb/t4701 rf1100-0.6

BL150-150RFf1/

WN20-150RF.0/1)-SFm