Dongguan Open Source Packaging Technology Co., Ltd (OS Tech) is one of the global leaders and manufacturer, which specializes in a professional unique technology film, combines R & D development, production line, and sales service. OS Tech located in HouJie Town, Dongguan City, Guangdong Province, that has the first-rate production equipment, the perfect quality assurance system, and the strong technical research & development team. The factory covers an area of 8000 square meters with 5 production lines of anti-scratch film/ soft touch film and independent quality department and R&D department. We are an ISO 9001-2015 certified company. Our factory film was passed REACH /ROHS/ CP 65 certification by SGS...