constant force spring washer
1. Size : 3mm-20mm(as your required)2.Material: spring steel or 304 SUS or 316 SUS,etc.
3. standards: NF E25-511 4. Surface tratement: plain/blackened by oil/electric galvanized(as your required)5.Packing:bulk, box packing, poly bag ,pallet(as your required) ..6.Payment terms: T/T FOB/CIF
We are a manufacturef of Fastener, We have been in this line of business for more than 20 years. If you have quotations, I can quote.