A We do not have such ready-made products. If you need, we can open the mould. The inner layer is made of 304 stainless steel, and the outer layer is made of environmentally friendly materials to achieve the effect of environmental protection and thermal insulation.

A hello, we have some, such as stainless steel or aluminum, completely free of plastic.

A Our stainless steel insulated cup has been vacuumed, which can not only keep the cup warm, but also keep it cold.Heat preservation time: usually, the heat preservation time can reach 6-8 hours at room temperature.The cooling time can reach 12 hours, and the cooling time is 12 hours.














这款保温杯能保温多久?

我们的不锈钢保温杯进行了抽真空处理， 不但可以使杯子具有保温效果，也可以保冷。保温时间：通常室温下保温时间可达到6-8小时，保冷可达12小时。

A Q: How to identify 201 and 304 stainless steel vacuum flasks?
A: 1.From the color point of view, 201 will be darker than 304, and 304 will be whiter, but this is not easily distinguishable by the eye. → 201 has manganese, 304 doesn't
2.Scratching on the surface of 201 with a hard knife will generally have obvious scratches, and scratches on 304 will not be obvious. → Since the carbon content of 201 is higher than 304, 201 is harder than 304, and the toughness of 304 is better.
3.It will rust in the humid and salty air for a long time, and 304 will not rust. →Because of the different nickel content, the corrosion resistance of 201 is far less than that of 304; the acid and alkali resistance 201 is not as good as 304.
4.The principle of using syrup is to chemically react the elements contained in the material with the substances in the identified syrup to form colored substances.
5.Spectrometer detection method, this method is the fastest and most accurate, but the spectrometer is expensive. Generally, individuals do not buy a spectrometer to buy materials. If the material is very important, the content of the element is very high, then you can find a special one. Testing companies, they usually have spectrometers      

如何辨别201和304不锈钢保温杯？
1.从颜色上看，201会比304深暗，304要白亮些，但是这也不是肉眼就能容易区分的。→ 201有锰元素，304没有
2.用坚硬的划刀在201表面划一下一般会有很明显的划痕，304上的划痕就不会很明显。→ 因为201的碳含量比304高，所以201比304要硬脆，304的韧性更好
3.长时间在潮湿而且盐分高的空气中会生锈，而304不会生锈。→因为镍的含量不同，201的耐腐蚀性能远不及304的好；耐酸碱性能201也没有304的好
4.用药水，原理是使材料内的所含元素与鉴别药水里的物质发生化学反应生成有色物质。
光谱仪检测法，这种方法最快速最准确，但是光谱仪的价格昂贵，一般个人都不会为了买点材料去买一个光谱仪来检测；如果材料非常重要，对元素含量要求非常高的话就可以找专门的检测公司，他们一般都会有光谱仪