Other pipe materials, other pipeline systems

Jining Dingdong Machinery Equipment Co., Ltd. is registered at Room 1602, 16th Floor, Building C, Phase II of Huijing International, No. 47 Jinyu Road, Jining City. The registration authority is the Market Supervision Administration of Jining High - tech Industrial Development Zone. The legal representative is Zhang Yujing. Its business scope includes the research and development, design, repair, and sales of machinery equipment and accessories; the sales of building materials, mining equipment, hardware and electrical appliances, hydraulic accessories, new energy vehicles and accessories, auto parts, amusement equipment, electronic products and accessories; and the import and export business of goods and technologies (except for the businesses restricted or prohibited by the state). (Projects that require approval in accordance with the law can only be carried out after being approved by relevant departments.)