GB/T 12459  弯头 DN 100-Ⅱ-990EL

DN100-II-9 90EL

PL65-16RFwRFch86h805 MF1120 AA=1022 d=16B

BL25(B)-150 RF 412160-1.6F50

SP-5 DN=225 RJ2�1@3b

pl 100-10 ffFh8.-2ƒ6 δ=4F-25R

WN80B-63RFS=4.5bb=76

wn150(a)-40 rf 168.3*7.1 14

HG/T20592-2009 BL200-40M

pL65(B)-6RF/rf0r10/RF(B)-10S

a wn