Play equipment metal structural requirements

childrens playground equipment is very important raw material, no matter any toys are inseparable from steel and other metals. Therefore, the metal structures must meet the requirements:
1, the metal hooks of gold pieces of anti-corrosion coating must meet the requirements.
2, child playground equipment by the large structural parts of steel corrosion depth should be less than the thickness of the original 15%
3, the new steel rail wear thickness should be less than 20% of the element; tube wear track size should be less than 15% of the original thickness