Stumpp, Schuele & Somappa Pvt. Ltd offers Closed/ Ground Fuel Injector Springs. Stumpp, Schuele & Somappa Pvt. Ltd is an ISO 9001 and ISO 14001 accredited company. The Company also manufactures various types of springs. The Fuel Injector Springs finds an application in diesel fuel injection pumps. The Fuel Injector Springs have wire diameter ranging from 2mm to 4.5mm. The outer diameter and length of these springs are available as per the requirement. These springs have closed and ground end configuration. These springs have oiling and vibro surface finish.