... GB 5237-2008 3)applicable to all the elevator Aluminum Profile For Material Lifts Part1)Alloy No.:6061,6063...2)Temper ... Treatment:1,Powder Coating 2,Anodize 3,Electrophoresis 4,Mill Finish 5,Wood Grain 6,Flourocarbon Coating 7,PVDF Coating ... aluminum extruded profile, solar energy profile, elevator guide rail profile, radiate heat profile, pipeline profile, auto window frames profile,window and door ...