Custom Plastic Injection Molding Parts and Molds with Customized Size Color and Hardness

We specialize in custom plastic parts and molds with comprehensive customization options including size, color, thickness, hardness, and logo integration.

Since 1992

Beijing Longshan Brothers Mould Co., Ltd is an integrated enterprise specializing in mold customization and manufacturing processes. Established in 1992, our factory covers 15,000 square meters and employs 90 skilled professionals.

Production Scope: Injection Molds, Die-casting Mold, Rubber Molds, Plastic Production, Die-casting Production, Rubber Production, and more.

With over 30 years of development, we have integrated multiple related business lines, creating a mature industrial chain that enriches our experience in comprehensive new product research and production.

We provide customization and processing services to more than 50 countries including the US, Germany, Russia, Australia, Italy, Indonesia, Korea, Japan, and the United Kingdom, with many clients maintaining successful partnerships for over 20 years.

Certifications & Achievements: ISO 9001:2015 Certificates, AAA Credit Enterprise, TUV Golden Certificates, Certificate of Small and medium-sized enterprises of science and technology of Hebei Province, Certificate of High and New technology of Hebei province, and 35 patents.

Our professional team provides technical support and high-efficiency cross-border solutions. We offer full visual service throughout production and superior one-stop service including design, surface treatment, assembly, and packaging.

Our goal is to meet clients' requirements, ensure customer satisfaction, and build our company into a century-old enterprise.

• GB/T19001-2016 / ISO9001:2015 Certificate
• Verified Supplier Certificate (Assessed by TUV)
• Business License
• AAA Certificate of Good Faith Supplier Grade
• AAA Integrity Management Demonstration Unit
• AAA Enterprise Credit Rating
• AAA Credit Rating Certificate
• AAA Quality Service Integrity Unit
• China Creditable Entrepreneur Certification
• AAA Abiding by Contracts & Keeping Promises Enterprise
• Certificate of Patent for Utility Model (35 Chinese patent certificates)

Yes, we are a mold manufacturing factory established in 1992. You can visit our factory via video call with me now. You are also welcome to visit our factory in China.

• More than 30 years of mold manufacturing experience
• Provide you with high-quality one-stop service (design, production, surface treatment, assembly, packaging)
• Professional team provides you with technical support and efficient cross-border solutions
• We can provide you with full visualization services during the cooperation process
• Lifetime after-sales warranty service

We will sign a confidentiality agreement with you. Confidential information related to custom projects will not be disclosed.

We can make different kinds of mold, such as plastic injection mold, die casting mold, blowing mold, stamping mold, and silicone rubber mold. Besides, we also can produce the final parts for you (plastic injection parts, aluminium die-casting parts, rubber parts, silicone parts, stamping parts).

Our designers and engineers all use Auto CAD, Solidworks, UG, Pro/E or CAM to check 2D or 3D drawings. We can check drawings with PDF/DWG/STP/STEP/X-T/IGS/STL/DXF/DXW etc. formats. STP/STEP is the best format.

We control quality according to ISO9001 quality system standards and send you videos of mold trial and samples. If necessary, we will provide steel quality specifications. For products, even though we inspect each product, we will still provide a certain quantity of spare parts based on the order quantity.

For molds, we coat one-layer anti-rust oil first, then cover with thin films on the mold, and finally pack into non-fumigation wooden boxes. For products, we pack into standard export cartons or as per customer's request.

Yes! As long as you provide reference objects and your ideas, we can provide design services.