伞齿轮低温闸阀 DZ40Y-16LCB，DZ40Y-16LC1，DZ40Y-16LC2，
78


58


24


4-18


365


200




凹面法法
MFM
DZ40Y-100LCB
DZ40Y-100LC1
DZ40Y-100LC2
DZ40Y-100LC3
DZ40Y-100LC4
DZ40Y-100P
DZ40Y-100R

01/25 13:21