... caulking gun 600ml 1:1,caulking tool Two-component plastic caulking gun Cartridge: 600ml (1:1) 600ml 1:1, plastic caulking gun, caulking tool, dispensing gun ... Description: CG-600-1-1 Two-component plastic caulking gun ... foams, Polymers, polyureas How to use caulking gun? Instructions:1, Open the swfit of ...