Liaocheng Zeyu Metal Products Co., Ltd. is specialized in producing mining drill rod, drill geological drill rod, hexagonal hollow steel circular hollow steel manufacturers, product quality and after-sales service, mining drill rod made of special alloy steel, unique heat treatment technology to ensure product durability, extended service life. Products are exported all over the country and overseas markets, and won the majority of customers. Various brands of machine price, quality and quantity of products, including drill rods, hollow hexagonal, hollow bar, geological drill, mining drill, drill iron ore, material: 20CR, 40CR, DZ40, DZ50, R780, 60SI2MN, 55SIMNMO, 40SIMNCRNIMO, 35SIMNMOv, specifications: H19, H22, H25, D32, D38, D45, D51, etc., we will provide our best service rock drill rod, the most perfect after-sale, and the most reasonable price are welcome customer inquiry! Liaocheng Zeyu Metal Products Co., Ltd. The products are widely used in railways, highways, tunnels, subways, coal, mining, metallurgy, water conservancy and other industries, products, selling more than 20 provinces, municipalities and autonomous regions hollow drill rod and into Japan United States, Europe and other foreign markets, praised by users. Material: ZK60si2mn, ZK55simnmo, ZK35simnmoV, ZK40simncrnimo, specifications: B19, B22, B25, B28. Vigorously promote honesty, hard work and enterprising spirit, the pursuit of "creating famous brand, strong among domestic enterprises" as the goal, always adhere to the "quality first, reputation-based, customer first" for the purpose of drill rod production, provide users with fast, high-quality, efficient service, and strive to provide the community with more and better quality products. Liaocheng Zeyu Metal Products Co., Ltd. is a drill rod production, research and sales as one of professional manufacturers. Our products are independent design and development ability, can provide the perfect solution for monolithic construction customers worldwide. The main products are 60si2mn, 55simnmo, 35simnmoV, 40simncrnimo hexagonal hollow drill rod products. In the open air and underground mining, water, drill rod | wear-Rod | Mine Rod (certified merchants) provided by Liaocheng Zeyu Metal Products Limited. Liaocheng Zeyu Metal Products Co., Ltd. (www.zk55simnmo.com) strong, credible, Shandong Liaocheng special steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Zeyu metal and you hand into the brilliant, for a better future!