stainless steel thermos cup
不锈钢保温杯 stainless steel thermos cup
men's stainless steel thermos cup
customized stainless steel thermos cup
direct stainless steel thermos cup
不锈钢保温杯由内外双层不锈钢制造而成,利用焊接技术把内胆和外壳结合在一起,再用真空技术把内胆与外壳的夹层中的空气给抽出来以达到真空保温的效果