GB/T 12459  偏心异径管 DN 80×10-Sch40SRE)-10RF D/fmc

DN 80×10-Sch40S RE)-10RF D/fmc

A WN28"-900RF8-40RF16MNFata/sr

SO100-300 RFS=-BSch

SO 250(B)-16 FM.6 S=1

WN100-16RFEL150hov0mBI 1000 RF18c6 r

DN 40-Sch10S C,Sch4/

SO40-10RFB-16RF12f2ampa=4.в

so 150a-150rfF6 RF=14-40pampSC9 WN25-1005/-1

SW20(B)-