-Sanheng Precision Industrial (Shenzhen) Co., Ltd.,Based in Shenzhen, China. Sanheng was established in 2003. We are a specialist injection moulding company, manufacturing and supplying quality plastic components and products to the world markets. The Sanheng team has the experience and expertise to manufacture high volumes of quality product, successfully fulfilling the needs of our clients. If you require quality plastic components, or items for your current or upcoming project, then please co