... &D, production, sales, and after-sales services. We specialize in producing med Name: 600ml Professional dual air caulking gun/adhesive sealant gun/cartridge silicone gun ... sealant and epoxy adhesive dispensing solutions.Caulking gun series include plastic composite caulking gun, air caulking gun, cordless caulking gun and iron caulking gun, while we also produce cartridges which ...