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Since its establishment, LDHB(Luoyang Longding Environmental Technology Co., Ltd.) has been committed to the research, design, manufacture and service of washing mechanism sand and gravel, tailings treatment, piling mud purification and waste incinerator slag treatment process.

LDHB adheres to the road of technological innovation, constantly market-oriented, and relying on advanced products, gradually establishes a united and efficient research, manufacturing and service team, we have a group of senior scientific researchers and engineers, including mechanical design, mechanical manufacturing, electrical control, environmental protection and other professionals. Through strengthening management and core technology innovation, on the basis of fully absorbing foreign advanced technology and solutions, we have independently developed advanced technologies and equipment in the fields of mine tailings, municipal shield foundation construction, and river dredging.

LDHB not only has a professional equipment manufacturing plant, but also established a professional team in design, quality inspection and control, installation and commissioning, and after-sales service. The workshop is equipped with advanced mechanical processing equipment, testing equipment and experimental equipment. We strictly manage, keep improving, design and manufacturing level constantly improve, and strive to provide our customers with real advanced and reliable products and satisfactory service!

Our series of products are exported to United States, Mexico, Serbia, Australia, Vietnam, India, Nepal, etc. more than ten countries, and are highly praised by customers. Our goal is to become the world's leading supplier of process solutions in the field of mineral processing. LDHB hopes to cooperate with all customers to make unremitting efforts to improve our living environment, promote the rational use of resources and achieve sustainable economic development.

Hebei Chirui Rubber and Plastic Products Co., Ltd. was established in 2007, located in Jingxian, southeast of Hebei Province.It's very convenient in transportation and traffic.Our company has an area of 18000 square meters.We have two branches, rubber & plastic products factory and conveying machinery factory.The company is a collection of scientific research, design, production as one of the professional enterprises. All kinds of professional equipment 86,168 workers,22 engineering and technical personnel. The main products are rubber and plastic seals, polyurethane accessories, high-pressure rubber hose, conveyor belt, conveyor design and so on.With excellent quality and service, our products are widely welcomed by customers in many countries.