... Air Dryer:Compressed Air FilterCompany profile:Shanghai HOLYSUN Machinery Technology Co.,Ltd.Established in 1993,is an integrated enterprise ... 13 series,300sorts of products which are widely used in electrical,metallurgy,electron,mechanism,petroleum,chemical industry,auto ... ahead on this line.The HOLYSUN’s headquarter is in Shanghai,meanwhile has offices among Beijing,Guangzhou,Jinan,Shenyang, ...