GB/T 12459  弯头 DN 40-Sch4090ELScC=3600 rL

DN 40-Sch40 90ELScC=3600 rL

WN80-2500 RF S=15.25C=1hFrfRF-1 Sch40)-6

WN500-600 RFtHG20615‚0s0-0F b=pamp009 RF/RF

WN50-25 RFR0-0/56-11138 rfRFh8650(B0R5las0BL�Б

WN40A-16RFS=2.90 RF,S=5/=0 RF S67-

PL150(B)-25 RF S=6/1200-1.6/64-1400-28S/35Ff

pl65(