Lincoln K and KP Numbers › Lincoln Electric K3130-4 MAGNUM PRO CURVE 300 DUAL PROCEDURE, 25' Lincoln Electric K3130-4 MAGNUM PRO CURVE 300 DUAL PROCEDURE, 25' Sale Price: $970.54 Original Price: $1,087.01 MAGNUM PRO CURVE 300 DUAL PROCEDURE, 25' PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO CURVE 300 DUAL PROCEDURE, 25' PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000