01 Technical Services

Product Application Plan Consultation

According to the specific situation of the application industry, analyze the optimization problems of the applied equipment and machines and provide solutions.

Product Application Technical Support

technical support to make protective products play a better role in equipment and machines and solve the problems existing in optimization

Product Customization After-sales Service

The advantages of efficient and excellent customized services, providing customized product development services to customers.

02 Our Advantage

3112, 2025

SD-PTD17 vent valve (press type)

Product Introduction SDA Shangda plastic waterproof and breathable valve is a new type of waterproof and breathable component. It adopts imported polymer expanded polytetrafluoroethylene microporous film e-PTFE through injection molding, hot melt welding [...]

2612, 2025

SD-M32*1.5-15 explosion-proof valve(thread type)

Product Introduction SDA Shangda metal waterproof, breathable and explosion-proofvalve assembly is combined with metal, silicone rubber andother materials through embedded springs to form airtightinstallation parts. It can effectively prevent water, dust or otherharmful [...]

2612, 2025

SD-M40*1.5-15 explosion-proof valve(thread type)

Product Introduction SDA Shangda metal waterproof, breathable and explosion-proofvalve assembly is combined with metal, silicone rubber andother materials through embedded springs to fomm airtightinstallation parts. It can effectively prevent water, dust or otherharmful [...]