qinglinyuan Founded in 2000, is one of large-scale manufacture of research, production, and sales of lightning protection products worldwide, voltage surge protector and overt-voltage protector. The products are widely used in: communication, finance, railway, highway, electric transportation, petrochemical industry, meteorology and intelligent residence etc. And now: power SPD, signal SPD, SPD for antenna feedback system are enjoy high reputation in the present market.Our company has a professional group of engineers and trained technicians, and skilled workers.We adhere to” technology, quality, reputation and innovation” and we always make the customers’ success as our source of development. And the company is based on the principle of ” being honest, mutual benefit and co-development”If you are interested in any items of our products, please contact us without hesitation. We are looking forward to providing you with high quality products, superior customer service.