• Specific item: Low carbon spring wire, stainless spring wire, etc.
• Standard: USA, Other Standard, or European Standard : EN 10270-1；
• Wire grade: material grades of ss, carbon content, tensile strength；
• Nominal wire diameter and tolence；
• Coating and finishes；
• Delivery forms: Coils, spools, etc；
• Desired quantity；
• Inspection document；
• Special requirements.
