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SINORAY is a China factory supplying spring wire of various types. Materials involved for manufacture of spring wire include :302,304,304H,304M,304N,316,316L,410,420J2 and other quality steel rods. Stainless steel spring wire is available from 0.7mm to 15mm according to Standards of AISI, DIN and other international standards. Materials for manufacture of steel spring wire include 60#, 70#, 75#, 72A, 72B, 82B, 65Mn. Spring steel wire diameter ranges from 0.2-14.0mm. Standards we follow in producing carbon steel spring wire: include GB4357-89, DIN17223. SINORAY spring wire has the features of uniform & beautiful surface condition, stable linearity, excellent cast and helix, good coil-forming ability for the springs. Main Types for Our International Buyers: Spring wire of carbon steel of various grades; Spring wire of stainless steel of various grades; Spring wire for mattress springs; Spring wire for music; Spring wire for special uses. 公司档案