中国农村野战freesexvideo|欧美成人一级A片|永久免费A片在线观看链接|国产高清国产精品国产专区|np高h肉辣灌浆男男

Contact us
中文
Hotline:(86)075526408233

about us

Home> Development Path

about us

In 2013, the company was established to open a new generation of cleaning & surface protection technology services, focusing on the fine line surface cleaning and protection technology transformation;
In 2014, we set up R & D center, established production and research base, successfully developed a variety of PCB-specific chemicals and successfully entered the market;
In 2015, R & D cooperation institutions were further strengthened, business areas expanded, product lines enriched and quality system certification.
In 2016, the national high-tech enterprise certification, product line further optimization, R & D capabilities, successfully applied for a number of patents.