... hanging items. Unlike nails, nail the carbon content of 0.2-1.7%, higher than ... 20mm,25mm,30mm,40mm,45mm,50mmColorBlackMaterialhigh-quanlity carbon steelWeight (kg/carton)FST18FST20FST25FST30FST40FST45FST504.95.87. ... ,500pc/box, 10 boxes/case. Features: high-quality carbon steel, modern design, unique, rapid efficacy, ... Description:FST steel concrete nails are the high carton steel to produce,use to the ...