Coaxial two component cartridge

摘要

An outer tube and an inner tube (103) are respectively provided with the locking components in the necks (107). The locking components of the outer and inner tubes are respectively formed with the successive channels and the successive ribs (109,110) in an axial direction. The outer diameter of the neck of the inner tube with the ribs is almost equal to the clearance diameter of the channel of the outer tube.