HG/T 20615  法兰盖 BL 50-300 G=8

bl50-300 g=8

SO 400-150 RF

WN 200(B)-10 RF Sch10S

1 M 1300-0.25 δs=10

pl80-16rjh659241B=44 S=10.56a)-Rธ�0fmES�� T0bch80@40@S5 RJrvlet/F sF080s0F�

SO 400(B)-150 RF

WN500(B)-25 RF

3 RF 500-1.0

PL50A-16RJmpquot-16RSTD(B)-10F/50c0sF RF.5 RJham