Lincoln K and KP Numbers › Lincoln Electric K4531-2-FM-45 MAGNUM PRO CURVE HDE 250- FM, 15 FT Lincoln Electric K4531-2-FM-45 MAGNUM PRO CURVE HDE 250- FM, 15 FT Sale Price: $748.66 Original Price: $838.50 MAGNUM PRO CURVE HDE 250- FM, 15 FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO CURVE HDE 250- FM, 15 FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000