Japan Original NSK As2000 Air Scaler Zhengzhou Smile Dental Equipment Co., Ltd. Base Info Model NO.:SDT-US41Interface:4 HolesTips:S1, S2, S3Trademark:NSKTransport Package:CartonSpecification:ISO, CE, FDAOrigin:Japan Description Pre:Dental X-ray Film Positioning System Next:Awesome Dental Galilean Loupe with Various Magnification