good quality and enjoy a good reputation in our country. All different kinds of size Thickness(A)Height(H)Width(B)Open AngleWeight(Kg)Light-weightHeavy-weightLight-weightHeavy-weightLight-weightHeavy-weightLight-weightHeavy-weight10"2.0,2.52.5,3.014.5,1616,1712—182287°±3°141612"2.5,3.02.5,3.016,1716,1712—182287°±3°2021.514"2.5,3.02.5,3.016,1716,1712—182287°±3°232616"2.5,3.02.5,3.016,1716,1712— ...