1,Famous Brand (OEM Allowed) 2,Certificates:CE,UL,RoHS,CCC ... liquid ring pumps, however, meet these challenges.The use of high-quality materials such as stainless steel and ceramics ensure utmost reliability ... resistance· Excellent corrosion resistance· No deposits and lime scale Applicantion:1,Asphalt-thickening machines(steamrollers)2,Corrosion protection for water pipes3 ...