... workers can supply good tin soldering and silver welding We have 5 years experience can do any ... method, one is tin soldering, second is silver welding by high frequecy. with our excellent job, customer ... very much.we have 1 years experience silver welding by high frequency any metal to tungsten carbide ... MIM. we have 16 workers for soldering and welding.There are many coating plant around our factory, ...