JIS B2220  法兰 WN RF 30K 2000A

WN RF 30K 2000A

WN 1"-300 RF Sch40S

WN 40(B)-16 RF S=3

A WN1000-150 RF B=715

WN650-16RF101F0 RF

WN 80-300 RF

WN250-40RF

WN20-600RF,B

WN25B-63 M S=3

WN 4"-300 RF Sch80Sr6Ro0 RF i S=3.5 S=30sF4RF Sch40Rc/haibo.jpg5 R7.1125FF0Srf f1=3¢âF0 R1