GB/T 12459  弯头 DN 125-1090ES FF-4./70-1FL146g050rf4

DN 125-10 90ES FF-4./70-1FL146g050rf4

2 FM 400-2.5 δ1=8)1 PL150(A)

BL50-10RF D0sc0 RFF6R6.mlF S=

WN150B-40M)-16 R3H40 H=/

20592pl400-6rf.5-ช.6=8

47023 RF1500-0.6 未=70 H

WN 50(B)-16 RF S=50 S2005 RF.h

WN50-2500T RFf|/009/4.F S07016/pl32(b)

SO 80