:( Oil injected screw compressors in direct contact with the gas) is generally used semi-synthetic and synthetic oils. Air compressor is best. (1) oil and gas does not react chemically; (4) increase the load factor of the compressor. As the use of nominal displacement compressors and gas consumption does not match, causing the motor load is low, you can consider using the speed control device to adjust. Qingdao Xingchang Pneumatic Machinery Co., Ltd. sells the best German Berg screw air compressor, air pressure machine Xingchang, preferably provided by Qingdao Qingdao compressor Pneumatic Machinery Co., Ltd. Xingchang. Compressor best Xingchang Pneumatic Machinery, Qingdao air compressor is best Qingdao Xingchang Pneumatic Machinery Co., Ltd. (www.xckyj.com) this year introduced a new upgrade, the above picture is for reference only, please dial this page or on the telephone picture to obtain the latest information, contact: Cui Junbo.