Henan Baistra Industrial Corporation is an international trade-oriented company engaged in sale of dental product. We have 24 years manufacturing exeperience and professional after-sale service.brbr From its foundation> we have served close to thousands of customers all over the world. Kindly be advised that we have been independently verified by TUV Rheinland and now wa have our own brand,AZDENT. You can build our relationship on trust.