Butyl glue starts from point A (B) and sticks one circle counterclockwise (clockwise) along the characteristic groove of the glue coating track shown in the figure
The butyl adhesive starts from point a (b) and sticks one circle counterclockwise (clockwise) along the characteristic groove of the gluing track shown in the figure
Butyl rubber starts from point A(B) and sticks one circle counterclockwise (clockwise) along the characteristic groove of the gluing track shown in the figure.