作者: Philip Andrew Walton , Andrew Smith , Sergio Sonzogni
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摘要: A container such as a beer keg includes body 1 and top bottom chimes 2, 3. The has peripheral side wall 10 provided with plurality of circumferentially-spaced projections which are formed the by simple pressing or moulding operation. Each chime is skirt 23 fits over co-operating inner lip snap-engages projections. In plastics container, contents tend to press against resist any tendency distortion in normal use therefore increase strength attachment. case 2 joined an hub 21 additionally fixed neck means valve assembly 4 screwed onto neck. cap 6 prevents unscrewing provides immediate evidence tampering.