HG/T 20592  法兰 PL 500-6 FM8 bwpam WN40-1500 RF216

PL500-6 FM8 bwpam WN40-1500 RF216

PJ/SE 50(B)-16 RF S=3

BL250-63TSch160S/110/86f2p

PJ/SE 80(B)-16 RF S=4

PJ/SE 65(B)-16 RF S=4

WN65(B)-40 RF S=≥4

BL350-10 RF0-FFOb40r50RFn50-150rf

WN100(B)-10 RFB)-10RF RF b=7ch8063)-CH8h40sch40F8160h40S3 S=103/u0

W