... stainless 3. usage: doors, windows Xinli is a elastic webbing, staple, ribbion webbing, mattress clip, mattress spring, mattress tapes, and relaived ... manufacturer in China.The more details about 21 GA hardware staple is as follow:1. usage: doors, windows, wooden furniture.2 ... .packing: 100pcs/row, 4000pcs/box, 20 box/ctn 21GA sofa staple,factory supply,with high quality and competitive price