One-stop speaker grill manufacturer | TONGJIN Tech

Tongjin Technology specializes in providing one-stop solutions for automotive metal etching speaker grilles with full process technology. The company integrates six major processes, including etching, stamping, PVD electroplating, spraying, welding and laser processing. Independently controls the production progress and quality of each major process to better meet customers' full-process needs and deliver order quickly, thereby effectively saving time and reducing costs for customers.
We have two major production bases: Ji'an zhuanjing technology co., Ltd. and Dongguan tongjin electrical appliance technology co., Ltd. Tongjin technology has built a metal etching industrial park of over 20,000 square meters, introduced the most advanced equipment from home and abroad, has 18 industry-leading etching processing production lines, 85 stamping machines, an independent spraying production line and a PVD electroplating business unit,