1. Shenzhen Huaxing Precision Casting Co., Ltd.: Huaxing Precision Casting is one of the leading aluminum alloy casting enterprises in China, with many patented technologies and rich experience, which can provide services such as gravity casting and pouring of aluminum alloy for robotic arms.

2. Dongguan Julong Aluminum Co., Ltd.: Julong Aluminum is a professional aluminum alloy die-casting enterprise with advanced casting equipment and strict quality management system, which can provide customers with high-quality mechanical arm aluminum alloy gravity casting and pouring services.

3. Shanghai Jinhui Machinery Co., Ltd.: Jinhui Machinery is an enterprise specializing in aluminum alloy casting, with leading casting technology and equipment in China, and can provide high-quality mechanical arm aluminum alloy gravity casting and pouring services.