... 3.Aluminium alloy unit trunk 4.6 years with CE HOT Selling! Dental Unit RL2015 C1 by CE approved 4-hole high ... , such as handpiece, handpiece tube, saliva ejector tube, PU tube, electronic components, painting etc, to ensure stable and durable use;2 ... the apparatus to high strength, corrosion-proofing and easy clean. HOT Selling! Dental Unit RL2015 C1 by CE approved