The round slings are usually made up of polyester The surface of round sling can prevent the object wear and tear or scratch even it can lift the object that would be damaged. The round cover belt isn't bearing weight , but only protecting the inside parallelly-ranged silk-bunch .The outside round round cover belt will break first or warn when overloading gravely or using for a long time, then the accident will be in case. The safety coefficient is 7:1 ,according to your special needs, 5:1, 6:1,8:1 for your choice. The working load is diffientiated by colors according to international standard easy to identify even if the sling has been abraded. When ordering it is important to make clear whether the length specified is circumference or effective working length. 100% high-strength polyester yarn Safety Factor 6:1 7:1 8:1 Standard : 4878 1492-2:2000 4497 Polyester Lifting Slings Type -Polyester round sling Technical specifications -Colour coded according to EN 1492-2 & AS 4497 -Capacity stripes; each stripe is equal to 1 tonne capacity. -The safe working load is clearly and continuously printed on the sleeve. -Extra strong PU-impregnated webbing of the sleeve, which does not allow dirt to enter. -Each sling is packed in plastic with CE declaration of conformity or Test Certificate. Characteristics: -Low elongation. -Extremely wear-resistant. Norms -According to Machine Directive 98/37/EC & AS 4497 -Safety Factor: 7:1