HG/T 20592  法兰 WN 500-16 RF RF SO-1.05sFF B=596 RF S

WN 500-16 RF RF SO-1.05sFF B=596 RF S

WN25A-63M S=911900-7f0-1FMF/

47023 t1900-1.6

WN 40-900 RF S=4

BⅠ1400-S/ &8F

wn32(B)-2500RJ/166S0S

BL 250-300 Mm00-060 H= m s01h/6

BII41000Рҝв.3h40S bJ�80ELM�RFf�

WN300B-63Gr rF00=3

WN 50(B)-16 RF S0CH4