YunYu Industrial Co., Ltd. was founded in 1987 by the current person in charge, Mr. Luo Senlin. At the beginning of the creation, the company was named "Shengda Enterprise", engaged in the manufacture of key products and wholesale and sale of various locks. It gradually transformed into a professional manufacturer of various locks and hardware accessories. It was officially registered as "Yu Yu Industrial Co., Ltd." in 1991. In addition to developing its own brand SL789 series products, it also provides customers with ODM and professional technology and production lines. Services such as OEM have developed many excellent new products for customers in recent years.
The company's products have been used in daily life, including door locks, cabinet locks, safes, mail boxes, car locks, nano-bone towers, window locks, various trailer locks, bicycle locks, etc. . The company currently has a number of patents, including SL rocket hollow embryos and new patents.
