You can provide all kinds of steel, heat treatment of beryllium copper alloy, cold treatment (-80), QPQ (black, tin, stainless steel, alloy steel and hard black).
可为你提供各种钢材,合金铍铜的热处理,冷处理(-80度),发黑,氮化,QPQ(不锈钢、合金钢加硬发黑)。
You can provide all kinds of steel, heat treatment of beryllium copper alloy, cold treatment (-80), QPQ (black, tin, stainless steel, alloy steel and hard black).
可为你提供各种钢材,合金铍铜的热处理,冷处理(-80度),发黑,氮化,QPQ(不锈钢、合金钢加硬发黑)。
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