1.ten years of metal mattress spring experience 2.design as customers' requirement 3 ... plastic bags and carton ten years of metal mattress spring experienceApplications: Automotive, medical device, electronics, toy etc. ... experienceCertification:ISO9001:2000, ISO14001: 2004,ROHSApplications:Extensively used for Industry, Automotive, medical device, agricultural machinery, electronics, toy Packing ...