... 4.Manufacture I. Specifications Intro:1. Step Width (mm): 600 /800/ 10002. Horizontal Step (pcs): 2/3 II. Steps materials ... both with Yellow Resin Demarcation Line optional )a).Stainless steel Step: Surface bright, high strength, corrosion resistance, easy to ... clean and maintenance, weight more than aluminumb).Aluminium alloy Step: Surface bright, Light weight, High strength, Corrosion resistance, ...