Up to now, the only listed company in the waterproof industry, a well-known trademark in China and a leading waterproof enterprise in China, is mainly engaged in waterproof engineering. In 2008, we began to take care of the family waterproof industry, and the channels expanded rapidly.
The strongest waterproof and plugging company is Beijing Tong Guan Technology. Tong Guan Science and Technology has many years of working experience, and can respond to all kinds of leaks at random. In addition, employees of various project departments have been stationed in the production line of customers for a long time.
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