Liaocheng Zeyu Metal Products Co., Ltd. is a hexagonal hollow steel, hollow steel 42crmo hexagonal hollow drill rod, hexagonal hollow steel, hollow hexagonal, hexagonal lance, lance 42crmo round hexagonal drill, hollow hexagonal , hexagonal hollow steel, hexagonal hollow steel, hexagonal drill pipe, hollow steel triangular, circular hollow steel production, services, new product development in one large enterprise producing all kinds: hexagonal hollow steel, hollow steel hexagonal , hexagonal hollow steel, hollow hexagonal, hexagonal lance, lance hexagonal hollow hexagonal, hexagonal hollow steel, hexagonal hollow steel, hexagonal drill pipe, hollow steel triangular, circular hollow drill pipe. Hexagonal hollow steel Specification: H19, H22, H25, H28, H32, H35 circular hollow steel Specifications: D32, D38, D45, D51 twist steel is divided into two kinds of solid and hollow, respectively, Φ26, Φ28, Φ30, Φ38, Φ40 other materials: 45 #, 55SiMnMo, 60Si2Mn, 40simncrnimo, 42CrMo, 23CrNi3Mo, 95CrMo, 35SiMnMoV, 22SiMnCrNi2Mo, special sizes and materials can be customized according to customer requirements! Products are widely used: rock mining, mining, railway, tunnel engineering, metallurgy, coal, water conservancy, mountains, quarrying. Liaocheng Zeyu Metal Products Co., a large professional manufacturer 42crmo 55simnmo hollow steel drill pipe, drill rod is produced material, the drill rod is one of the major consuming tool drilling equipment, mainly used in the construction of mining and railways, highways, construction of canals, dams, defense readiness of the project. Sectional shape of a hollow steel round, hexagonal, steel can be divided according to the hollow carbon steel and alloy steel hollow two categories. Use can be divided into the deep hole drilling hollow steel drill rod connection, shallow hole drilling hollow steel drill rod drill rod and specialty uses hollow steel categories. Production methods are hollow steel cast pipe method, drilling method, perforated - pull system of law, perforated - hot rolling, hot extrusion coating method and the like. [42crmo], 42crmo round drill, Zeyu metal provided by Zeyu metals. Welcome to consult Liaocheng Zeyu Metal Products Co., Ltd. (www.zk55simnmo.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Mr. Sun