GB/T 12459  等径四通 DN 580-Sch80SCRS

DN 580-Sch80S CRS

WN 250-150 RF Sch80

WN 40-150 RF Sch408rf b=1c3240RFMf WN450-

BL32-63FM/(b)C0100RF5-1=33 K=85782-RF

bi 400-s

WN 400-600 RF Sch80=4r P00-2.5 sch40@S4-40 c-16RFtent/wso

so500-10rf

SO 200-63 FMRF

SO100(B)-16 RF1000-1/000.040FMF

WN15(B)