... ),by air,by sea are optionalZhejiang Couson Electronics Technology Co.,Ltd is a high-tech green illumination and innovative enterprise ... , optics, tehrmology, chymistry ,electron. Relying on Hangzhou, Wenzhou production base, with regional advantages and R&D opportunities, ... foster high-tech energy-saving lighting products.Headquartered in Wenzhou city, Couson builds sales center in Beijing, Hangzhou, ...