... ., Ltd. in Feb. 2006. Kingbell/Yongtai specializes in manufacturing various of powder metallurgy components, which have more than 1500 items, including ... imported from Japan, and some domestic machines, 2 sets of 18 type of continues mesh belts sintering stove, steam treatment stove and ... business relationship with domestic and international customers. Powder Metallurgy Rotors of the Pumps