Hexagonal hollow steel, H22 hexagonal hollow steel, hexagonal hollow steel supplied by Zeyu metals. Liaocheng Zeyu Metal Products Co., Ltd. (www.zk55simnmo.com) Shandong Liaocheng quality certified company Commercial Union has Zeyu other brands, has a good reputation, honesty, service-oriented "business alliance customer service" on page click icon, we will be happy to serve you! Liaocheng Zeyu Metal Products Co., a large professional 55simnmo hollow steel hexagonal hollow steel producers B19 is produced brazing rod material, Rod is one of the major consuming tool drilling equipment, mainly used in the construction of mining and railways, construction of roads, canals, dams, defense readiness in engineering. Sectional shape of a hollow steel round, hexagonal, steel can be classified according to carbon steel and alloy hollow hollow steel two categories. Use can be divided Hole Drilling connection with hollow steel drill rod, drill rod shallow hole drilling hollow steel drill rod and specialty uses hollow steel categories. Methods of production of hollow steel cast pipe method, drilling method, perforation - pull system of law, perforated - hot rolling, hot extrusion coating method and the like. Liaocheng Zeyu Metal Products Co., Ltd. Disclaimer: Due to market confusion, outlaws fraudulent use of the company's network information and images for commercial ye lie hexagonal hollow steel, hope new and old customers in front of businesses to conduct transactions on the supply companies do site visits to see if the other side there is the spot, whether H22 hexagonal hollow steel production capacity, so as to avoid unnecessary losses. Allen, also known as the lance: hexagonal hollow steel, hexagonal hollow steel, hollow hexagonal, hollow hexagonal, blast furnace opening and the necessary tools to send oxygen. This product is manufactured for 45 high-carbon steel and its products advantages: wall thickness, the center hole is small, high intensity, furnace deep and consumption, oxygen consumption at the end, and low cost. Has been completely replaced the steel type oxygen blowing pipe. Specifications: B19, B22, B25. Products are widely used: mining, railway, tunnel engineering, metallurgy, coal, water conservancy, mountains, quarrying, drilling mining, smelting blowing