Liaocheng Zeyu is hexagonal Co., Ltd. is a hollow steel, hollow hexagonal steel, hexagonal hollow steel, hollow hexagonal, hexagonal oxygen blowing tube, hexagonal oxygen blowing pipe, hollow hexagonal, hexagonal hollow steel, hexagonal hollow steel, hexagonal hollow drill steel, hollow steel triangular, circular hollow steel production, services, new product development in one large enterprise producing all kinds: hexagonal hollow steel, hollow hexagonal steel, hexagonal hollow steel, hollow hexagonal steel, hexagonal oxygen blowing tube, hexagonal oxygen blowing pipe, hollow hexagonal, hexagonal hollow steel, hexagonal hollow steel, hexagonal drill pipe, hollow steel triangular, circular hollow drill steel. The company strictly according to GB / T1301-2008, GB / 6481-2008 two national standards organization of production of hollow drill rod, products passed ISO9002 quality system certification, the company has a B19, B22, B25, B32, B35 and other hollow hexagonal , S22, S25, S32, S35 series of hexagonal solid steel, D26 B22 drill rod, D28, D30, D32 drill rod, D38, D40 mining drill rod, D45, D50, and other heavy-duty drill rod, where D38, D40 opening widely brazing for the metallurgical industry, widely used in the domestic large blast furnace, greatly reducing the labor intensity smelting workers. Praise by users. Three hollow steel rolling process with a core drilling method ── hot-rolled, hot to wear - Heat pull method, thermal wear - hot rolling method, hollow steel surface contrast three processes produce macroscopic and microscopic quality, will use this Three processing technology H22-40SiMnCrNiMo Rod industrial assessment test results showed that: drilling with a core drill rod hot rolling wear life than hot - hot pull method, thermal wear - hot rolling method of brazing rod length, the existing Thermal wear - Heat pull method and thermal wear - Rod life hot rolling method is basically the same, but the failure modes and the longest life expectancy analysis, thermal wear - hot rolling heat wear - Hot Rod pull method for increasing life expectancy, potential big. Liaocheng Zeyu Metal Products Co., Ltd. produces all kinds of solder steel, hexagonal hollow steel, drill rod hollow steel, material grade: 45 #, 55SiMnMo, 60Si2Mn, 40simncrnimo, 42CrMo, 23CrNi3Mo, 95CrMo, 35SiMnMoV, FF710,22SiMnCrNi2Mo, the company focus on long-term development and environmental needs, implementation techniques, equipment, products, fully upgraded, and strive to complete the relocation project in the next 2-3 years to become the largest mining equipment manufacturing raw materials base in North China. Future Zeyu metal will become a "boutique building material base, excellent steel pioneer." Due to development needs, based on respect for people, train people, motivate people, the achievements of people management philosophy, paying Careers welcome you soon. Rod | Hollow Rod | H22 Rod provided by Zeyu metals. This information consists of: providing Liaocheng Zeyu Metal Products Co. (www.zk55simnmo.com), we are business alliance member, the integrity of the whole network certification vendor. Feel free to contact us, contact: Mr. Sun