... , competitive price Long time usage life Long usage life, High quality pneumatic sealant gun 1. Hard cartridge sealant gun:9inch 310ml ... paint handle,white-aluminum alloy gun body.Replaceable rubber muzzle,switch joint or gas-conduct nut attached. Applicant for piston ... paint handle,white aluminum alloy gun body.Replaceable rubber muzzle,switch joint or gas-conduct nut attached.Applicant for rubber ...