Smooth, easy to install quickly, function Obviate the necessity of the embedded or opening Reduce working hours, cost savings, adjustable base: + / - 3 mm around rotating Angle: plus or minus 4 ° suitable for heavy door: < 100 kg for door model: 750-1000 - mm suitable for thick door: 8 and 13 mm using the environment temperature: - 20 ° ~ 50 ° & have spent