... which could be customized 3Manufactu Stainless spring steel 1.Grade for 420, 430 etc.;2.Thickness from 0.3mm to 2 ... weather curability,D-hydroxy-chromanol, anticorrosion;9.Good for making shoe toe caps,shoe insoles,shoe shanks,plaster trowels,scrapers,shovels and knives etc10 ...