| 摘要 |
<p>The packing for a windscreen wiper consists of a cylindrical sleeve (1) made from a transparent plastics. The packing is heat welded at both ends (8, 9) after filling. The sleeve is fitted with a slot (10) over the width of the pack. The slot is closed by an adhesive label (11) which is overprinted with instructions of advertising. The sleeve has two diamond shaped holes (14) one at each end. The edges of the holes are heat welded together.</p> |
