... surface 3.ITS certified 4.different sizes available stainless steel slot tube We offer :1. stainless steel,Aluminium profile alloy ... 6061/6063,temper in T4/T5/T6 2. Finished: anodized ,electrophoresis,powder coated ... ,PVDF,Mill finished,etc,in different color 3. process :drilling ,punching,milling,cutting ,CNC ...