HG/T 20592  法兰盖 BL 300-10 RFh250ampah40SЬ—ЦswB==p

bl300-10rfh250ampah40SЬ—ЦswB==p

SO 100-300 RFSCH40SF SCH40S SCH10S0 H=2480S SCH

SO 40-16 RF a=98 h=1/ƒ

LWN40-300RF H=310 B=38230

SP-1-5/5FSCHmHGRF0SF.fF Sc67s670-2=FLFMMf SF Sch50Frf RFS5m s0�5 RJ-167s67mp

WN25A-100 RJ550-1.6δ)-10 R FM862

WN1