| 摘要 |
FIELD: construction. ^ SUBSTANCE: tray for vibration compaction of paving tiles with relief image consists of bearing metal sheet with lower smooth surface with through holes and faces and shaping upper surface, on which there is a relief pattern. At that shaping upper surface with relief pattern is made of thermoplastic material on upper corrugated surface of bearing metal sheet. Besides, on relief surface there are rectangular grooves, accessories that closely contact with partitions and separate colorful moulding sands. ^ EFFECT: device reliability and simplicity. ^ 3 dwg |
