Linkman: Liguanghua Tel: 086-021-60820907 Fax: 086-021-60820909 Email: esong06@zgesong.com Company name: Shanghai Esong Mining Machinery Co.,Ltd website: www.esongcrusher.com Our round pressure dust collector is supported by our abundant experience in this line and imported solenoid valves. It is of superior quality, demonstrated by its approval by the state environmental protection bureau and its growing demand in the market.