Rod, hollow drill rod, H22 Rod provided 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! Hollow drill steel (also known as the drill steel) is making mountains drilling tool steel, hollow steel and solder products with high technological content and high added value steel products, there are good economic and good development prospects. To cultivate our specialty products, improving product mix, under the guidance of well-known experts in brazing steel, decided to produce B22 hollow drill steel hollow drill rod by Liaocheng Zeyu Products Co., Ltd. is a research and development company in strict accordance with national standards GB / T1301-2008, and GB / 6481-2008 two national standards, products passed ISO9002 quality system certification, the company produces a series of hollow hexagonal 19,22,25,28,32,35, 22 hydraulic drill rod , 25,32,35 series of hexagonal solid drill rod pole, D26, D28, D30, D32, D38, D40, D45, D50, and other heavy-duty drill rod, where D38, D40 opening solder widely used in metallurgical industry, in the domestic large Blast in widespread use, greatly reducing the labor intensity smelting workers. Praise by users. , Rock Drilling Tools perforated diameter due to restrictions in drilling and blasting projects, which are very small cross-sectional area. However, this slender rods, have the conditions under severe wear and corrosive media effects, withstand high frequency (2000 ~ 3000 times / ml. R ·) pull, high impact energy (about 294J) rock drill applied , compression, bending, twisting and other cyclic stress. Depending on the size of the load and other conditions and rock solid, the rock life is often only a few minutes to ten hours. Solder steel kind, you must first meet the brazing with the basic features of this work Liaocheng Zeyu Metal Products Co., Ltd. is a professional solder steel industry service companies hexagonal drill rod, the company is located in the scenic Jiangbei Water City (Shandong Liaocheng ). The company specializes in the production of hollow steel hexagonal, circular hollow steel, solder steel grades: 55SiMnMo, 60Si2Mn, 40simncrnimo, 42CrMo, 23CrNi3Mo, 95CrMo, 35SiMnMoV, FF710,22SiMnCrNi2Mo, mining drill for drilling industry to provide warehousing and distribution services. Zeyu metal will vary according to the needs of the most suitable products available to the user, for the user to build a real one-stop shopping service platform products. In the after-sales service, Zeyu metal with professional and technical personnel as well as technical collaboration to solve various problems encountered by users in exchange processing and production process. Zeyu Metal Products is committed to establish long-term friendly cooperative partnership with customers, with quality products, good service, a wealth of expertise and experience in a timely manner to meet the needs of users.