GB/T 12459  异径三通 DN 800×800×20-Sch80STR

DN 20×20×800-Sch80S TR

47021 c-fm500-1.6 ÃÆ

2 RF 1000-14Fpam6 RFF216rf1F0--185150f b=2FF-

3 RF1200-19

WN100A-300 RF/F Sch12 f1=1 K=

SOH RF 20K A 40A-150 R/35D7§

HG/T20592 PL20-25RF70h8���-600��ƒ

WN 200-10 RF00-150RFRF)

WN100-600RF