we are expert in producing rubber inject mould, specially for insulators, cable accessory, auto part etc. 1.OEM2.passed ISO ... 2.tooling&production 3.rich experience in this field rubber mould, specially for insulators, arresters, hollow core insulators, cable accessory, cable jiont ... customer's drawings.9.we also have rubber inject machine for testing the mould, so you do not worry about testing.