material: stainless steel specifciation:According to the customer request (0.2mm*10mm*any length etc. ) 1.usage:pusher2.material: stainless steel3.strength : 3N,6N,9N ect.4.specification: thickness:0.1mm, 0.12mm, 0.15mm,0.2mm widht:9.5mm, 10mm, 12mm. length: any According to the customer request spring