We can do all kinds of flat spiral springs,if you have the drawing.We can offer you ... price. We are specialized in all various kinds of flat spiral springs:1). Material: carbon steel, alloy steel, stainless steel, ... resistance to both high and low quality.5).Furun Mechanical Spring Co.,Ltd is a Sino-America joint venture,with YPAYMORE ... to the USA,Canada,Mexico,Europe and India,ect. flat spiral spring