GB/T 12459  弯头 DN 100-Sch40S180ELŽRf=r

DN 100-Sch40S 180ELŽRf=r

pl20-16rf(a)(b)-/0-0R18700-1.0

pl65(b)-10 rf d=185 k=150

WN350-150M005RFF17f1' 法åδs=8C=45 C= c

SO500(B)-16 rf H=27918 s

WN50A-25RFS=3 rf01.6:w000-400c3\u0083\u00c2

WN200-600RF HG/0-16 FM

WN50(B)-100RJF450-1.0

pL200-6