... 4.material:aluminum protection IP67 push button switch,foot switch.floor push,foot pedal,foot pedal swich, ... ,KH8012,LT2(),F2-Q,YDT1-15,YDT1-16,YDT1-17,FS-37,YDT1-101,MD- ... IC, adopt the most complete technical design, with various protection circuit, anti-jamming measures, more ... all processes of production links is strict accordance with the standardization documents, never let any nonconforming ...