HG/T 20592  法兰盖 BL 50-10 RF B)-63 RF RF0 FM RFF RF Sc05 G Sch4

BL50-10 RF B)-63 RF RF0 FM RFF RF Sc05 G Sch4

SO 80-900 FMfo025 MrfF H79rf2051h80b)-16m

WN200-150 RF0RJ&ampampquotmF52500-160f6-c

SO25(B)-16RFb=1)=22 d= K= n rfп�4f

PL40(B)-10 FFgf/

BL 50-900 RFF d=1220 FMrom5 &00rf hg

so80(B)-16 RFRJF R D=130