Qingdao Sheng Hai Si Tong New Material Co., Ltd.

OEM Customization Service

We offer professional OEM services tailored to your unique product needs. The process is simple and efficient:

• You provide product drawings, design concepts, and specific requirements (e.g., dimensions, performance, surface finish).

• Our team develops custom molds according to your specifications, with strict quality checks to ensure alignment with your design.

• Leveraging our 4 large-scale hydraulic presses and optimized production line, we mass-produce high-quality products that meet your exact standards.

• You don’t need to handle mold development, production management, or raw material sourcing—we take care of the entire manufacturing process, letting you focus on your brand and market expansion.

ODM Customization Service

For clients who already have molds and raw materials, our ODM service provides reliable production support:

• You supply SMC raw materials and existing molds, along with production requirements (e.g., quantity, delivery timeline, quality criteria).

• We provide advanced manufacturing resources: 4 high-capacity hydraulic presses, professional production equipment, and a team of over 40 skilled workers.

• Our team executes precise batch pressing, trimming, and quality inspection strictly following your instructions.

• With strong production capacity and efficient workflow, we ensure timely delivery even for large-volume orders, helping you reduce production costs and accelerate market launch.

Why Choose Our Customization Services?

• Powerful Production Capability: 4 large hydraulic presses and a mature production line enable high-efficiency, large-batch manufacturing.

• Professional Team Support: Over 40 experienced staff ensure strict quality control and smooth execution of custom projects.

• Flexible Cooperation Mode: Whether you need full OEM solutions or ODM production support, we adapt to your needs with tailored services.

• Reliable Delivery: Ample production capacity and optimized processes guarantee on-time delivery for both small-batch trials and mass production.

Our SMC Manufacturing Process

We specialize in manufacturing high-quality products using SMC (Sheet Molding Compound) through hydraulic press molding technology. Our complete production workflow ensures precision, efficiency, and consistent quality.

• Raw Material Sourcing: We procure premium SMC raw materials, selecting suppliers with reliable quality control to lay a solid foundation for finished products.
• Hydraulic Press Molding: The core production step—raw materials are precisely placed into custom molds and pressed using advanced hydraulic machines, leveraging high pressure and controlled temperature to shape the base products.
• Trimming & Grinding: After molding, professional technicians trim excess flash and grind edges to refine product dimensions, ensuring a smooth, burr-free surface that meets strict tolerance requirements.
• Waste Management: We implement eco-friendly waste handling—scrap materials from trimming and grinding are systematically collected for recycling or proper disposal, adhering to environmental standards.
• Packaging & Storage: Finished products undergo quality inspections before being carefully packaged to prevent damage during transportation. All qualified products are then stored in our warehouse, ready for immediate shipment.

Core Strengths

• Advanced Production Equipment: Equipped with 4 large-scale hydraulic presses, our production line boasts powerful processing capabilities, enabling efficient batch production and short lead times.
• High Production Capacity: Thanks to the advanced hydraulic press configuration and optimized workflow, we achieve exceptional production efficiency to meet large-volume orders promptly.
• Professional Team: Our team consists of over 40 skilled employees, including experienced technicians, quality inspectors, and production specialists, who ensure every link of the manufacturing process is executed with precision.
• Ample Inventory Reserve: We maintain substantial stock of finished products and key raw materials, allowing us to fulfill urgent orders quickly and provide consistent supply support for long-term cooperation.

Qingdao Shenghai Sitong New Materials Co., Ltd. was established in 2016 and is located in Qingdao, Shandong Province, China. The company occupies a site area of 12,000 square meters, with a building area of 8,000 square meters. The company specializes in the production of hand-laid composite materials, SMC composites, and other products.

With a comprehensive product range covering integrated bathroom suites, commercial vehicle parts, carbon fiber panels, and other fields, the company is a manufacturing enterprise that integrates design, development, production, sales, and service.

The company currently employs 43 staff members, including three sales representatives, two designers, and two accountants, as well as production workshop managers, after-sales service consultants, and other positions.

Mission Statement: Utilize composite new materials in production to enrich ourselves and care for the Earth.

Company Development History (Milestones)

2016 – Company Establishment
Qingdao Shenghai Sitong New Material Co., Ltd. (SHST) was founded in 2016. Since its inception, the company has been dedicated to the R&D, production and custom manufacturing of SMC, BMC and LFT-D composite molded products, building a solid operational and technical foundation for long-term development in the advanced composite material industry.

2018–2020 – Business Expansion & Product Upgrade
Driven by technological innovation, SHST expanded its product portfolio and production scale. The company officially launched the mass production of SMC integrated bathroom systems, automotive composite parts and high-speed rail structural accessories. During this period, we optimized manufacturing processes and quality management standards, forming mature capabilities to provide customized composite molding solutions for multiple industrial fields.

2021–2023 – Standardized Management & International Certification
To meet global industrial manufacturing and quality requirements, SHST has completed the certification of ISO9001, IATF16949, ISO14001 and OHSAS18001 management systems. The full set of international standardized management systems further standardized production, quality, environment and occupational safety management, effectively improving product consistency, production efficiency and comprehensive enterprise strength.

2024–Present – Global Market Development
Focusing on global export strategy, the company has accelerated international market layout. Our core products, including composite integrated bathrooms, automotive and rail transit accessories, and carbon fiber composite products, have been exported to Southeast Asia, the Middle East, Europe, Africa and other regions. SHST has established stable, long-term and win-win cooperative relationships with global clients, and continues to provide reliable customized composite material solutions for overseas customers.

Our Main Manufacturing Processes and Services

1. SMC Molding

2. Carbon Fiber Manufacturing

3. SMC Prefabricated Bathrooms

4. Equipment Trim Parts (SMC products can be customized according to customer requirements)

5. One-Stop Service for SMC Products (product design, 3D drawing design, mold design, and supply of raw materials)

6. SMC High-Speed Rail Seats

7. Automotive Parts (primarily for commercial vehicles)

8. New Energy Storage Packages (battery end plates, battery casings)

9. OEM and ODM Manufacturing Services Available