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 by Liaocheng Zeyu Products Co., Ltd. is a research and development company in strict accordance with national standards GB / T1301- 2008 solder steel, 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, 25, 32, 35, and other hexagonal solid steel, D26, D28, D30, D32, D38, D40, D45, D50, and other heavy-duty steel drill rod hollow solder, which D38, D40 opening solder widely used in metallurgical industry, in the domestic large blast commonly used, 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 types, you must first meet with solder work this basic features Liaocheng Zeyu Metal Products Co., Ltd. welcome you and hope that we provide materials and services to meet your needs. In my company to "quality of survival, service and development", with the best products, the most attentive service to win customers solder steel production, to win the market. Material mainly for major machinery factory, military factories, foundries, foreign trade companies, products used in the defense industry fields solder alloy steel, aerospace, marine, petroleum, chemical, mechanical, civil, electronics and so on. According to your demand for materials and products for custom processing. Company perennial supply of a variety of advanced low alloy structural steel, steel, steel and a variety of excellent solder materials steel, with hexagonal hollow steel drill rod, drill rod with a circular hollow steel: FF710 (24SiMnNi2CrMoA), 55simnmo, 40simncrnimo, 23crni3mo , 60si2mn. Welcome new and old customers to contact us to discuss cooperation, our company is willing to work with you hand in hand, create brilliant! Solder steel, hollow steel solder, solder steel supplied 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