... .material: Q235,20#steel,S/S 2.size: as your dwg 3.surface: anodizing, clear 4.qty: 1000pcs aluminum machined part1.material ... : Q235,20#steel,S/S 304, 4102.size: as your ... /Special Features:Materials: carbon steel, stainless steel, alloy steel and aluminum Standard: ASTM, JIS, BS, DIN, EN, ISO Operation: green sand ...