False.

Sino thermos cup is made of imported SUS304-2B high-quality stainless steel and non-toxic and temperature-resistant food-grade plastic. The inner and outer bladders of Sino thermos cup adopt fully automatic welding and Japanese tailless vacuum technology to prevent heat exchange between the inner bladder and the outside world, and have long heat preservation time and good effect. The liner of Sino thermos cup adopts overall stretch forming technology, and the outer shell adopts fully automatic tube making and water swelling forming technology. Advanced technology is used to manufacture high-quality products. Xino thermos cup is coated with imported original lacquer, which is durable, insulated from heat and cold, and feels delicate and smooth, with a velvet texture.

The vacuum cup welding of stainless steel is a vacuum brazing process, that is, the welding joints are closely overlapped together, and the brazing material melts and penetrates into the joint seam, which is a bit like brazing. The weight is used well. If it is, it looks like one piece. Moreover, the welding joints in vacuum are very bright and difficult to distinguish.

Heenoor Chinese transliteration: Heenoor is the transliteration of Heenoor. The trademark holder *** holds three trademark categories: Class 11, Class 20 and Class 21, which are widely used in Small household appliances, plastic products, vacuum products, glass products and other commodities.