Dimples in sails for wind surfing and sail sports has three-dimensional shaped canvas screen and dimples have small regular recesses and burls, whereby individual recesses and burls can be angular or round

摘要

The dimples in canvas screen has a three-dimensional shaped canvas screen and the dimples have small regular recesses and burls, whereby individual recesses and burls can be angular or round. These dimples have a diameter of 1-5mm and they have a depth of 0.1-2mm.