HG/T 20615  法兰盖 BL 36-300 RJ

BL36-300 RJ

2 RF 1000-1.0 δ1=30

SW4"-300 RF

ABL24-150 RF

ABL500-150 RF

WN70-150RFSc

WN300-25 RJ

WN 8"-150 RF S=std

WN15(B)-40 M

bl100-16g Sch40´=Fforum.ht(b)rfc300 RF Sch80S´RF B=h80SR B=38�0=12 S�80 RF =5ะà��2RFSF H1=1-600rf s