Liaocheng Zeyu Metal Products Co., alloy circular drill pipe, drill pipe and hollow steel material: 60si2mn, 55simnmo, 35simnmoV, 23crni3mo, 40simncrnimo, DZ40, DZ50, R780 perennial reserve multiple specifications of mine drill rod, drill rod tunnels, rock drill rod, hexagonal hollow drill steel round mine, blowing brazing, circular hollow steel, geological drill pipe and other cash resources. In the company of the purpose of the comprehensive development of people-centered, agents operating materials spiral steel pipe, galvanized steel circular hollow drill pipe, galvanized processing. Years of operating experience of the company's mature and standardized in all business sectors. I company of "integrity" business philosophy, innovative spirit, excellence, strong quality of the plastic image! Will sincerely serve the customers, willing to work with new and old customers work together to create great! We sincerely welcome friends to patronize ! Liaocheng Zeyu Metal Products Co., Ltd. is a mining drill, drill rod, drill drill rod, hexagonal hollow steel, circular hollow steel, special steel major geological drill production and supply companies, approved by the Shandong Provincial Foreign Economic and Trade Office, Enjoy import and export rights, is a collection of production, trade and services, new product development in one of the provincial large steel companies. Professional management: 55simnmo hexagonal hollow steel, 55simnmo round circular hollow steel drill pipe, 55simnmo spiral hollow steel, 55simnmo twist hollow steel, strict implementation of national standards, all produced in large state-owned steel mills, more than 3,000 tons of long preparation inventory, inventory and sales are the first round drill tunnels in similar enterprises in the country _ _ Zeyu drill circular metal (View) provided by Liaocheng Zeyu Metal Products Limited. "Hex hollow steel, hexagonal lance, hexagonal drill rod, alloy drill pipe, drill rod mine" preferred Liaocheng Zeyu Metal Products Co., Ltd. (2), the company is located: Shandong Liaocheng Development Zone Industrial Park, over the years, Zeyu metal to provide customers with the best quality service, Contact: Mr. Sun. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Zeyu metal look forward to becoming your long-term partner!