Dongguan Huawen Precision Technology Co., Ltd. is a manufacturing enterprise specializing in PCBA vacuum coating of electronic circuit boards. The company has ten thousand grade and bureau clean workshop, and has passed ISO14001-2004 environmental management system certification. The company has been focusing on the research of vacuum coating technology for electronic circuit board products used in automobiles and outdoor LED displays for a long time. Through continuous improvement of the vacuum coating technology of Perrin, the company provides mature and stable vacuum coating service for customers. The company has 10 Pyrelin vacuum coating production lines. At present, the main coating products are new energy vehicle control board PCBA, power board PCBA, and P1.5-P6 LED display module. The vacuum coating capacity is nearly 10,000 square meters per month.