Hasplock-style, tube concave-shaped supporting straw cushion( Abbreviation: Concave-shaped straw cushion) is formed and bundled up by good quality straw-drying machinery.
In order to produce Concave-shaped supporting straw cushion, the straw which are chosen must be added regularly during production in order to be in smooth condition and must have moisture containing not more than 16%.In the wrapping process, the distance between the first iron wire and the top of cushion should be minimum 50mm,after tightening, the rest length of iron wire should be at least 50mm and this should be curved and pressed in the the side of cushion. The abrasive index between cushion and steel board should not be less than 0.42.