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Our Company

Yantai Jinjiang Building Materials Co., Ltd. has long specialized in the R&D and manufacturing of ductile iron. We produce a full range of ductile iron manhole covers, drainage gratings, trench covers and other related products with exquisite craftsmanship and reliable quality.

Our client base mainly includes municipal authorities, real estate developers, construction enterprises, landscape architecture companies and more. Our products are widely used in various sectors such as water supply, power supply, gas supply, telecommunications, expressway construction and other infrastructure fields.

The company has obtained multiple authoritative certifications and honors, including AAA Credit Enterprise certification, ISO9001 Quality Management System Certification and CE Certification. Adhering to the service tenet of "Customer First, Reputation Foremost", we wholeheartedly serve clients from all walks of life. We are committed to building a world-class brand for manhole covers. Choose us for professionalism; choose us for complete peace of mind!

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Professional manhole cover products with reliable load-bearing capacity

Core Values

Innovation

Encourage technological and managerial innovation, sustain investment in R&D resources, explore new materials and new processes, and swiftly respond to shifting market demands.

Pragmatism

Adhere to a down-to-earth work style, prioritize tangible deliverables and practical outcomes, and rigorously control every production process and customer requirement with a meticulous attitude.

Unity

Advocate close teamwork, believe in the power of collective wisdom, and strive to build a cohesive, professional and high-performance workforce.

Efficiency

Pursue optimized operational processes and outstanding execution, adopt a result-oriented mindset, and ensure the delivery of timely, precise and professional services to clients.

Enterprise Strength

Modern Manufacturing Base

Robust production capacity serves as the core driving force behind the company’s sustainable growth. As a large-scale manufacturing park, we adopt scientifically planned production line layouts to guarantee stable output capacity.

Advanced Automated Equipment

We have invested heavily in introducing advanced automated production lines from home and abroad, covering key processes including precision machining and automatic welding. This greatly boosts production efficiency and machining accuracy, enabling standardized mass production.

Rigorous Full-process Quality Control

We have established a full-chain inspection specification covering raw material incoming inspection to finished product delivery. Clear operating standards are set for every procedure with multi-layer quality checks, ensuring stable and consistent quality of delivered products.

Full Certifications, Dependable Professionalism

The company holds ISO, CE and other relevant certifications with complete qualifications. We maintain professional dedication and wholeheartedly serve every partner.

Development Milestones

2030

Yantai Jinjiang Building Materials Co., Ltd. has long specialized in the R&D and manufacturing of ductile iron.
2023

We produce a full range of ductile iron manhole covers, drainage gratings, trench covers and other related products with exquisite craftsmanship and reliable quality.
2013

Our client base mainly includes municipal authorities, real estate developers, construction enterprises, landscape architecture companies and more.
2003

Our products are widely used in various sectors such as water supply, power supply, gas supply, telecommunications, expressway construction and other infrastructure fields.

Enterprise Vision

With the spirit of craftsmanship, we connect the urban veins of cities at home and abroad, focusing on the R&D and production of manhole covers and municipal water supply and drainage components. Adhering to quality innovation and eco-friendly production, we have built a full-chain system covering R&D, production, customization, logistics and after-sales service, striving to become a leading enterprise in the global municipal infrastructure industry.

Professional Team, Create Reliable Products

With years of in-depth experience in the manhole cover industry, we have assembled an international service team that is professional, efficient, seasoned, reliable and dedicated. Core team members cover the full industrial chain, including product R&D, quality control, order follow-up and after-sales operation & maintenance. They possess an in-depth understanding of client demands, with extensive experience in customer support and large-order execution.

Upholding integrity-based operation and professional craftsmanship, our team always prioritizes the core demands of overseas clients. We maintain long-term industry focus, exercise rigorous control over every detail, and honor all delivery commitments. Backed by stable service capacity, a mature foreign trade operation system and solid global reputation, we continuously provide reliable, efficient and hassle-free one-stop foreign trade cooperation services for clients worldwide. We are ready to pursue win-win outcomes and long-term partnerships with all partners.