... 2):2.4MM carbon manganese steel 6 ring BONNEL springs,elastic-rich,ergonomic design,after the second heat treatment and anti ... soft,hygienic sleep surface.5)Compress mattress packing process:The whole process of mattress export: put mattress in the machine:after compressed:Put ... products:a>.We have all kind of furniture style,model,material,specifications to meet the need of customers from diiferent ...