... ISO9001:2000 certificate. 2 provide the best Tortoise Shell in low est price. Tortoise Shell is also known as Hexsteel grill or ... abrasion resistance.Specifications:Thickness: 1.2cm-2.5cm Hole Shape: Tortoise Materials: A General Carbon Steel , A3, OCr13,1Cr13,0Cr18Ni9,1Cr18Ni9Ti ...