ASME B30.9 pdf download Slings Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings fabric (metal mesh): the flexible portion of the sling exclusive of end fittings consisting of a series of transverstspirals and cross rods. fabric length (mefal mesh): the distance of metal meshbetween the end fittings. fabric thickness (mefal mesh): the nominal overall thicknessof the spirals....