Neihuang Lida Olympic metal processing www.nhldga.com, is engaged in mining trays, card cable, the board first processing professional processing factories. Lida Olympic Since its inception, has been committed to the establishment of custom processing, technology first for the purpose of the modern enterprise. We always adhere to the "quality of survival, integrity and development" business philosophy, with excellent quality products and quality service well received by customers. When coal tray hardness test, test force values ??for 3000 ~ 10000N. / 30, said steel ball with a diameter of 10mm, the 2000N force is applied maintaining 30s, measured mine tray Material Brinell hardness value of 120. Test force dwell time: black metal mines tray is generally 10 a 15s; non-ferrous metals for 30s; when the Brinell hardness value of less than 5HBS for 60s. Brinell hardness representation is: hardness symbol in front of the figure for hardness; sign test the premise behind the numbers indicate, followed by the diameter of the sphere, the test force and power to keep the time. The company organized structure, processing technology force, equipped with a number of large-scale hydraulic equipment, the annual production capacity of 6 million units. Perennial accept mine trays, card cable, plate head custom processing business, has become the industry benchmark in northern regions of the processing enterprises. We will continue to uphold the "integrity beyond" the purpose, and industry colleagues to create a cause of a better tomorrow. Welcome to our customers and industry colleagues around the country to our base to visit, study guide. Custom tray, the force of the IOC is your preferred manufacturers. Contact: Chaijing Li Tel: 13937297000 Zhongqi