GB/T 12459  弯头 DN 40-Sch4090ES

DN40-Sch40 90ES

SP-5-14-

SO 500-300 M@40 rf5RF@7 BB=51 CSch4@F-16

WN100(A)-25RF S-Sc2/u0

PL350-25RF SCH80/(b)-900 rjF0-1.03rfRFM S0 RF D=895 K=.

WN80-150RjRFG/T 20592-2009128rf s0RF5-135RF��RFFr06SO150-16 RFn=4��ch160136R

WN350(A)-63 RF80s0S.