We have manufactured Sintered or Powdered Metallurgy structure parts for 20 years Ningbo Kingbell Powder Metallurgy Co., Ltd. ,established in 1988, located in Ningbo, China, with 5, 000 square meters of standard workshops in 10, 000 square meters of factory district. In 2006,we registered Ningbo Yongtai Powder Metallurgy Co., Ltd with Taiwan businessman. We specialize in producing various of ...