| 摘要 |
<p>Package comprising a tubular body of high density polyethylene contg. a skirted or a hollow dilatent piston made of similar as a sliding fit for packaging viscous material such as greases or pastes, esp. for dispensing by pneumatic pistol. Lighter than metal packs, and, if dented, are pliable enough for the piston to smooth out the crease and still allow the contents to be ejected.</p> |
