HG/T 20592  法兰 PL 125-16 RF b=3 AA=17/14-1

pl125(a)-16RF b=3 AA=17/14-1

so300-40gs600 SO1=30650r=1

SO 300(B)-16 G S=660=0 RF=�.00

47021-M 500-1.0 b1=990FTfch400-h40f/u00e6/u0084/da

SO 150-150 RF FM00 rjF016rf0fmB-15-

LWN 300-2500 M B1=C1&quo я▐���

JWN 300×400(B)-25 RF Sc- D=210 B=