HG/T 20592  法兰 WN 300(B)-16 RF S=27

WN 300(B)-16 RF S=27

WN 100-300 RF S=4

WN 25(B)-16 RF

WN80-150 RF SCH80S WN100-150 R

bl32-16t50 4

WN125(B)-10RF3=35 RF205@WN100-150

47065.3 B9890

47023 FM800-4.0/110-190

DN65-PN16 PL RF Ⅱ

WN 80-1500 RJ Sch80S/1h rf=-8H@RF�0r sch400-0.0RF0-1RF414