technical advantages and performance comparison of glue injection and threading aluminum profiles
1. technical advantages of glue injection and threading aluminum profiles principle of glue injection: 1, first, design a heat insulation groove on the aluminum profile of the door, win or curtain wall . 2inject the two-component polyurethane insulation glue into the insulation tank. 3after the heat-insulating glue reacts quickly to form a strong polymer, the…
