- jinfeng zhai
- Tungsten carbide powder,Cobalt powder,Tungsten carbide welding wire,Tungsten carbide nozzle.
- Address:Chengyang district 20 - dual road no. 3
- Hong Kong Cheung Hing International Co. Ltd.
- tungsten scrap, tungsten spent catalyst, tungsten powder, cobalt powder.
- Address:No 9/28. International Finance Center, centre, Hong Kong. Hong Kong Hong Kong
- Cheung Kee Engineering Co
- cobalt powder, cobalt compounds.
- Address:Tokawan st, Kln, Hong Kong
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