... and can achieve high-efficiency machining from ordinary steel to pre-hardened steel. 2.The cutting edge is very sharp and ... rectangular groove processing of various parts. Zhuzhou Jingzuan Carbide Co., Ltd, selling NC cutting tools and cemented carbide blade ... choosing by Xiangtan Iron and Steel Co., Ltd (XISC), SANY Heavy Industry Co., Ltd, Weichai Power Co., Ltd, CSR Co., Ltd, Anhui Military Industry ...