Lincoln K and KP Numbers › Lincoln Electric K3518-2-8-45 MAGNUM PRO CURVE 450A 15FT (TWECO) Lincoln Electric K3518-2-8-45 MAGNUM PRO CURVE 450A 15FT (TWECO) Sale Price: $1,036.97 Original Price: $1,161.41 MAGNUM PRO CURVE 450A 15FT (TWECO) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO CURVE 450A 15FT (TWECO) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000