BEIJING MEIMEIFU TRADE CO.,LTD Skype: mike_newin Specifications 1.excellent quality and reasonable price 2.heat-treat and anti-rust treament 3.advanced automatic production facilities http://bjmeimeifu.diytrade.com Attention: The continuous steel wire is used for contiouous bed,continuous upholster,1.8mm and 1.9mm can be compressed ,but 2.1mm cann't.