Shanghai Shangzan Air Filtration Equipment Co.,Ltd was established in 2004,the company owns fully automatic mini-pleat,have clapboard air filter production line, the Swiss import mixed infusion machine, Automatic seamless connection infusion machine and other professional the air filter manufacturing equipment which are domestic most advanced .In the test equipment used the world first-class brand---The United States produce the Metone big flow of production laser dust particle counter composition of high efficiency air filter Scanning detecting sets.The company own levels of clean...