KL company is a professional factory for gas compressor,refrigerated air dryer,desiccant air dryer,water chiller,PSA oxygen generator and PSA nitrogen generator etc.2012 Shanghai fair is the fifth time we take part in Shanghai PTC Asia.Our factory is the only one air compressed purification factory who take part in the fair in 2008,but this year more and more factorys has take part in. It makes buyers,factorys and industry associations to witness our industry improvement for technical level , product diversification and differentiation.