... 1. ISO 9001:2008 2. HIP sintered 3. from Zhuzhou City, Hunan Province, China ... technical personnel. Our company leader have the spirit of unity and cooperation, development and innovation. Our ... punching moulds, tungsten carbide buttons for mining, tungsten carbide goods for tamping of railway foundation, tungsten carbide strips, ... 6,000,000 to add machinery in next 3 years. We will try our best to ...