2.0mm pocket spring bag: 1. material: iron 2. usage: inner sofa 3. width: 60mm to 1000mm 4. brand: xinli xinli is a elastic webbing, rigid webbing, mattress tapes, rigid webbing, cotton piping, sofa spring, mattress clip, staple company.We have more than 300 professional workers as well as 200 advanced mavhines, all of these together with innovation consciousness make our company to be one of the ...