Zhuzhou Watt Carbide co, LTD, ki chita nan Zhuzhou, Hunan, Lachin. Li sitou pwodui foure carbure, foure fraisage, foure koupe carbure, foure cnc, foure vire carbure, foure fil carbure, moulen fen carbure, zouti moulen carbure tengstèn elatriye. Vire manifakti inset.