Iron Panel Pins 1, We are special manufactor of the Iron panel pins, such as the sizes: 1/ 2" , 5/ 8" , 3/ 4" , 1" . 2, We choose low carbon steel wire as the materials. With the most reasonable price and delivery on time, we hope we can find more partners around the world. If you are interested, please feel free to contact me. Let' s talk about the details. Looking forward to hearing from you soon.