Shenzhen DongShan Watch Industry Co., Ltd.(Dongshan Industrial Hong Kong Limited) specializes in producing high-quality such as Plastic case, Silicone strap, TPU strap, Fluorine rubber strap manufacturers. Our company has its own Engineering Department, the Department of mold, in the the traditional materials, base on the invention is also committed to new materials. Has successfully developed 20 ATM carbon fiber case, anti-aging fluorine rubber strap, smart bracelet and other new products. the products are exported all over the world.