When Buying a Water Cup, We Found That Some Stainless Steel Water Cups Have Seams Inside, and Some Do Not. What is the Difference?
There is a line inside the cup, which is a laser welding line. This process is called laser welding. The process used for 4.water cup forming is a water expansion process. There is a laser welding line inside, which will generally turn black after using for a long time and make people feel dirty.
There is no welding line inside the 5.water bottle, which is drawing process. The processing cost of different processes is different, and the processing cost of the stretching process is higher than that of the water expansion process. Compared with the beauty of the inside of the cup, the stretching will be more neat and beautiful. But in use, there is no special difference between the two processes.
Dongguan Zhanyi Commodity Technology Co., Ltd. has water expansion and stretch, which can produce water cups with different process requirements according to customer order requirements. We adopt the international AQL2.0 standard, which is higher than the quality inspection standards of the peers, to ensure that the water cups manufactured by different processes are good products.
Customers from all over the world are welcome to ask us for samples for evaluation. Welcome to our factory for inspection, and welcome to place orders for cooperation. To understand us, please visit http://www.umbottle.com