Insulation materials, thermal insulation materials, sound insulation materials, Packaging materials, Fluid equipment and accessories, Mechanical and electrical equipment and accessories, Mechanical equipment and accessories, Marine equipment and accessories, Hydraulic equipment and accessories, Wires and cables, Instruments, Pipe fittings, Auto Parts, Metal seal sales,Business Consulting, Packaging Design, Web design and production, Construction Engineering, Engage in import and export of goods and technology。【 Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments】