BS EN 755-1-1997 Aluminium and aluminium alloys — Extruded rodbar, tube and ...
271698644 · 2013-06-20 09:53 · 66040 次点击
BSEN755-1-1997Aluminiumandaluminiumalloys—Extrudedrodbar,tubeandprofilesPart1.Technicalconditionsforinspectionanddelivery.pdf