... & pneumatic united drive 5. Main construction features1.The main part of ST03 Sealant-spreading machine is base stock pump,curing agent ... pump,proportioning pump,up and down system of the base stock,sealant compound system,pneumatic system,hydraulic ... 1100*2500*(MM) Weight:600KGNote:improvement,function enhance,and change part according to the object,there is no further notice. ...