B221M
B221M (Standard Specification for Aluminum and Aluminum Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric))· ASTM (Соединенные Штаты) · 42 материалов
B221M (Standard Specification for Aluminum and Aluminum Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric))· ASTM (Соединенные Штаты) · 42 материалов