... gasket ring---finished product---alternative2.relevant equipmentList of required whole-set equipment List of mold(basic configuration)Slitter 1-2 ... and pre-coiling machineAdopting techinque1 needs 2 sets of lug top moldsbeading and coiling machinefour-roller seamer ... , price, parameter, delivery time, video, catalog, terms of payment ...to youOur major component suppliers:1. Pneumatic elements ...