Taiwan Rainbow Co., Ltd. has specialized in producing special wires with high

quality and committed to satisfy customer expectations and needs. For the

range of products offered, it mainly include pure copper wires, copper alloys

and precious metals. With the exception of standard products, customization

and valet service are available upon request.

The copper-tin alloys produced by Taiwan Rainbow Co., Ltd. are made from high-purity LME registered cathode copper and tin. For producing wires and bars with minimum impurities, TRC uses advanced vacuum continuous casting technique to achieve the requirement.

The characteristics of product include：

High Strength：Melting in high frequency furnace can homogenize the alloy well because of electromagnetic

stirring effect. This can make the strength of copper-tin alloy wires be improved.

                                Stable Conductivity：Homogenized alloys can make electrical conductivity be stable.

Toughness and Strength Improvement：Using vacuum casting technique can improve strength and toughness

of wires as it can minimize impurity content . Hence, the copper-tin alloy wires show excellent machining

characteristics and the wires are not easily broken during the further process.