Company Profile
DSD Composite Materials Co., Ltd is a global manufacturer of composite materials located in Zaoqiang - major fiberglass industrial bases of China.
Focusing on the independent R&D and manufacturing of manhole cover, we have successfully developed large diameter Φ900mm D400 E600 manhole cover.
DSD manhole cover main products are multi-functional round manhole covers, square and rectangular manhole covers, ditch and grille manhole cover, Manhole operation well and oil unloading anti-overflow handhole well.
DSD have strong design team and rich experience in OEM development and customization.
We can develop, customized and manufactured high-quality and cost-effective products of various specifications according to customer needs, and create value for customers with products and services!
Annual output: 270,000 sets
OEM: support customization
Experience of the core personnel of the R&D team: more than 16 years
Service Scope: Worldwide



Product standards and scope
Our products are made of high-strength fiber composite material SMC through high temperature & pressure compression molding. Products comply with EN124-5 2015 and AS3996 2006 standards, and are suitable for applications in -50°-150° ambient temperature,
as well as in lawns, indoors, sidewalks, non-motorized lanes, car parking lots, gas stations, freight stations, docks, airport and other heavy roads
and sites that are frequently used Meet all kinds of products with A15, B125, C250, D400, E600 load-bearing grades.
Equipment & Production line
The company has 15 molding production equipment, 8 pultrusion production lines, and 2 winding container production lines.
We focus on the R & D and manufacturing of high-strength fiber composite SMC manhole covers and other products. With rich R & D and manufacturing experience and adhering to the technical concept of continuous innovation, we design and manufacture all kinds of special products with strong corrosion resistance, anti-static and weather resistance to meet the special use requirements of trunk roads, sidewalks, green belts, gas stations, airports, electronic underground equipment, communication underground equipment and so on.
Year of establishment
Registered capital
Production and testing equipments
Sales country and region
Enterprise Culture
Conquer people's hearts with quality and let the world know

Enterprise Purpose
Scientific and technological innovation, facing the world

Service Concept
Only when users are satisfied can DSD develop

Enterprise Spirit
Continuously develop and surpass oneself
Certificate
Support exclusive customization services, provide customers with perfect customization solutions on demand, and meet customers' personalized and diversified needs