虽然是塑料材质，但是手机的外壳做工非常好。
The built quality is very good, though it is made of plastic material.
可靠耐用：外壳采用PC材质，不易破碎。
Reliable & durable cover: adopt PC material, no easy fragile.
铁芯外壳可为不锈钢、金属铝、塑料等材质。
Core cover is made out of stainless steel, metallic aluminum, plastic material etc...
铁芯外壳可为不锈钢、金属铝、塑料等材质。
Core cover is made out of stainless steel, metallic aluminum, plastic material etc...
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