Heavy Duty, Fire Retardant Is Marked C [. Heavy Duty, Fire Retardant Is Marked Canvas Sleeve Size 2 (Inches) Id With Asbestos Coating, For Protection Of Welding Cables And Hoses For Canvas Sleeve Should Be Industry Standard And As Per Is 636. Test Certificates, Authorization/Dealership Certificate/Oem Certificate To Be Submitted At The Time Of Supply.]