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Unitek, the subsidiary of Taiwan Tong Group, has completely introduced the technology of stainless steel heat treatment and surface treatment from Japan since 2002, being the first manufacturer in China to produce the high-strength and high quality martensitic stainless steel fasteners. Therefore the situation of only relying on imports of such products for long was broken. In our co***ny there are all kinds of equipment used to inspect all the performance of metallic material and the surface corrosion resi...
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