... BS10D / BS10E / UNIInspection and test : API598 , ISO5208-1982Drving style : Lever , gear , actuator , pneumaticmain products include : 1. Wafer type butterfly ... valve-butterfly valve with lever , Gear box , Pneumatic apparatus , electronic apparatus , Fire ... valve ,Corrosion resistant butterfly valve.etc. handle lever soft-sealed carbon steel or stainless steel high- ...