... required Certificate: GS We could offer the webbing sling ,round sling as follows: 1) Material: polyester, nylon, polypropylene 2) Color: as code ... ,3ton yellow10ton orange3) Length: as required4) Safety factor: 5:1, 6:1, 7:1 or 8:15) Standard: ISO4878, EN1492:2000, AS-Standard6 ...