... test add up 50000 times. 3.High grade iron material. 4.Hydraulic hinge Slide-on soft close hinge with buffering This ... Professional Manufacture Technology2.Multi-purpose: usage in various types of cabinet, cupboard, wardrobe, bookcase and the like for home, office or ... not distortion and reliable,surface is not rust long time.4.Three-dimensional adjusting of all hinge is simple and convenient ...