| 摘要 |
A polymeric tubular container for viscous materials comprises a discharge nozzle (nose) from one end and a piston disposed inside the container (cartridge), in the center of this piston a threaded hole is made that forms a screw pair with a rod passes through it with an external thread, which corresponds to the thread of the central hole in the piston, wherein the rod is mounted with impossibility of its axial movement. |
