Customized Aluminum Die Casting Plastic Injection Mould with P20/718/738/NAK80/S136 Mould Material and Computerized Numerical Control

30 Years of Manufacturing Excellence

Beijing Longshan Brothers Trading Co., Ltd. is located in Beijing, China. We operate multiple specialized companies including:

• Injection mould manufacturing company
• Aluminum die casting company specializing in die-casting mould manufacturing
• Machinery company focused on machine development and manufacturing
• OEM assembling company

Founded in 1992, our facility covers 15,000 square meters with over 100 employees. We partner with renowned suppliers including ASSAB, LKM, YUDO, and other domestic and international enterprises. Our products serve markets in China, Germany, Italy, Russia, and other countries worldwide.

Certified with ISO:9000 quality system, we mass-produce plastic parts, stamping parts, and aluminum die casting parts using mould tools. Our components are utilized across multiple industries including electrical equipment, electric power, photovoltaic, aerospace, railway locomotives, household appliances, , construction materials, and medical sectors.

We provide comprehensive service support throughout the entire customer journey - before, during, and after sales. Our commitment is to build lasting partnerships and deliver precision-engineered products that meet the highest quality standards.