... NUT,NUT A good non-standard fastenerS manufacturer for your better choice .1.What’s the specification of our Products ? MaterialsCarbon ... Experience ,good technology1. We are a professional manufacturer with more than 20 years experiences in screw,bolt,nut,washer,rivet, stud ... management.3. We have special research person and more than 100 equipment to produce fastener.Perfect quality 1.The material ...