100% raw materials adopt the domestic A00 aluminum spindle casting, Pass Baird FSQ vacuum imported ... .A. We are a specialized factory which produces the Aluminum bar( 2A12, 2A11, 2021, 2017,2014,5A02,5A05,5083 ... etc) and other type of aluminum material.100% raw materials adopt the domestic A00 aluminum spindle casting, Pass Baird ... to ensure the quality of products. 2021 aluminum extruded round bar