For minimum cost closing of all kinds of bags. Single thread chain stitch, with simple mechanism for easier maintenance. New type NP-7A is provided with a plastic handle and an auto-lubrication. Single Thread Chain Stitch automatic thread cutting minimum maintenance safety plastic handle for insulation oil pump lubrication system using steel cam - long life trouble-free continuous operation for kraft paper, cotton, hessian, jute, pp/pe woven cloth and other bag materials
