... 2.dust-proof & oil-proof 3.good cushion,shock absorption effect 4.CCC,CE ... than 10,000,000operation2.The structure design of dust-proof and oil-proof: 1) ... of epoxy resin to seal the product,but need choose the wire leads frist.3.For large ultra-trip has a good ... cushion,shock absorption effect.4.High mechanical strength,compact,lightweight 1)installation hole spacing is 25.4mm2)Shell with good ...