Dianzhi Hardware Co., Ltd. is a professional king pin kit products manufacture with 16 years experiences in china. Our company have been an integration of research, development, production and sale for a whole.We have advanced production system, and have several production line of king pins, bushes, bearings and packing production lines. After a long time of hard to development and research, we have more than 300 models of king pin kits, suitable for different countries and regions.Such as Japan, Korea, Europe and Southeast Asia. Our products are sold well all over the world and have won warm praise from customers.