Steel Pole Anchor Material: Carbon steel, stainless steel Process: Stamping and welding hot dip galvanized Tianjin Lituo Import &Export Co.,Ltd. Hardware Division focus on engaging in the nail&screw,including drywall screw, chipboard screw, self tapping/drilling screw, common nail, concrete nail, duplex nail, finishing nail, roofing nail with umbrella head, roofing nail with flat head, boat nail, ...