stainless steel sheet for escalator material:304,430,316,439 thickness:0.4-3. ... surface:NO.4/HL/NO.8/bead blast/etching stainless steel sheet for escalatormaterial:304,430,316,439 thickness: 1.4mm-3.0mmwidth ... , auto door, elevator, refrigeratory, dish washer, sink, kitchen ware... stainless steel sheet for escalator