ds.●?Short lead times / Fast Turnaround_________________________________________________________________________ 2.Product Specification of the helical coil spring Item helical coil springWire Diameter wire sizes ranging from .008" up to .312"Type CylinderOEM OfferedMaterial Spring steelFinish PlainWire Type roundTolerance? 0.01-0.1mmApplication Hardwareplac of Origin ?ChinaSample time 2-4daysMeets / Exceeds SGS ,Website:http://www.springmanufacturerchina.com, ROHS , ISO9001Quality?guarante