HG/T 20592  法兰盖 BL 200-16 RFmp0002500-6.4H8FM84-H=2.02hsFii┴п═я∙п▌п═п

BL200-16RFmp0002500-6.4H8FM84-H=2.02hsFii┴п═я∙п▌п═п

3 FM1700-1.0-1.016 RF-2.5800-2.5f)-10RF=60/70-.6

47023 M 900-45S=7.7100RF2

WN50(A)-16RF0RJ S0(b)

WN50(B)-16 RF

BL500()-16 RF2.5RF-60RF F 5f-16RFat01.61.6/0-2.

PL40-6RF0 RF B=54

PL 32B