Steel is the mother of industry, the eternal sunrise industry. We Qingdao Guardx Industry Co Ltd Committed to modern industrial construction decdes become an expert in this area. Our business scope including auto, truck, railway equipment and heavy equipment, also for residential construction parts. We are steel guard also we are your business Guardx.

NEW DIESEL MACHINERY Co., Ltd is a high tech enterprise which integrates the research, development, assembly, production, sales and service of engines and engine parts, diesel generators, gas generators and marine gearbox. Supported by a number of highly experienced team of offshore engineering and marine engineering.

Shijiazhuang Jing Ci Trading Co., Ltd. Is based in Hebei province, which occupied about 80% engine spare parts products output of the world. Our factory is located in Wuji, where only two and half hours drive to Beijing.

Our factory is located in Shijiazhuang city, Hebei, China and it covers an area of 140 mu. We are a professional factory to produce engine valve, we have more 11 years experience. Our factory strictly in accordance with national standards and industry production, raw materials used in high-end 21-4N, 4Cr10SiZMo valve and other special steels, with the surfacing of spray, liquid nitriding, polishing, grinding cone determined, CNC machining and other advanced processing means, the valve is widely used in the production of automobiles, motorcycles, farm machinery and small gasoline engine, good to meet the needs of users.