... low carbon steel 2) Surface treatment: Polished, diamond point, Smooth or Twisted,zinc galvanize Roofing nails Features: 1) Material: low carbon ... steel2) Surface treatment: Polished, diamond point, Smooth or Twisted, zinc galvanized, according to the request of the customer3 ... 1-1/2" to 3"4) Package: 900g/box 20boxes/ctn or 3g/box 8boxes/ctn according to the request of the customer ...