SB-221M
SB-221M (Specification for Aluminum and Aluminum Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric))· ASME (Vereinigte Staaten) · 42 Materialien
SB-221M (Specification for Aluminum and Aluminum Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric))· ASME (Vereinigte Staaten) · 42 Materialien