伞齿轮低温闸阀 DZ40Y-16LCB，DZ40Y-16LC1，DZ40Y-16LC2，



D0




凹面法法
MFM
DZ40Y-40LCB
DZ40Y-40LC1
DZ40Y-40LC2
DZ40Y-40LC3
DZ40Y-40LC4
DZ40Y-40P
DZ40Y-40R


20


150


105


75

01/27 06:32