Material: aluminium alloy Surface treatment: Tin plated ATB-1100: 1*100MCM, L shape, screw: M12*14 ATB-2100: 2*100MCM, L shape, screw: M12*14 ATB-1250: 1*250MCM, L shape, screw: M16*18 ATB-2250: 2*250MCM, L shape, screw: M16*18 ATB-1350: 1*350MCM, L shape, screw: M18*20 ATB-2350: 2*350MCM, L shape, screw: M18*20 ATB-1500: 1*500MCM, L shape, screw: M20*24 ATB-2500: 2*500MCM, L shape, screw: M20*24 ATB-1600: 1*600MCM, L shape, screw: M20*24 ATB-2600: 2*600MCM, L shape, screw: M20*24 ATB-1800: 1*800MCM, L shape, screw: M24*26 ATB-2800: 2*800MCM, L shape, screw: M24*26 ATB-11000: 1*1000MCM, L shape, screw: M30*36 ATB-21000: 2*1000MCM, L shape, screw: M30*36 ATB-1200S: 1*200MCM, square shape, screw: M16*18 ATB-1500S: 1*500MCM, square shape, screw: M20*24.