选用了优质元件和材料。
材料：选用优质低碳钢丝、不锈钢丝等。
Materials: high quality low carbon steel wire. Stainless steel wire.
同时选用最高档的原材料，以确保产品质量的优质和稳定。
We also picked high quality material to make sure product quality is stable.
同时选用最高档的原材料，以确保产品质量的优质和稳定。
We also picked high quality material to make sure product quality is stable.
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