continuous coils
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High Tensile Bonnell Spring System
1、The wire of 2.4mm high-carbon steel was used for the production. The wire is continuously wound into the coils without the formation of knots or sharp bends which means that the stress points are not there. 2、Springs are heated and cooled at a very high temperature to eliminate the internal stresses. This results in 30% more rebound capacity, no deformation or sagging even after long-term use. 3、Edge reinforcements are made of the 4.0-5.0mm thick steel wire. They provide very good resistance to compression.
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