不 锈 钢 针 头 Stainless Steel Pin 产品性能(Product performances)： 针管材质：不锈钢 Materials of needle tubing:Stainless steel 针座材质：黄铜、镀铬 Materials of needle file: Brass or Chrome-plated 包装规格：每盒12支装 Package: 12 pieces contained in one box 技术参数(Specifications): 规格(Specifications) 料号(Number) 内径(Inside Diameter) 外径(Outside Diameter) 12G MN -12G -13 2.27 mm 2.77 mm 13G MN -13G -13 1.94 mm 2.40 mm 14G MN -14G -13 1.64 mm 2.10 mm 15G MN -15G -13 1.43 mm 1.83 mm 16G MN -16G -13 1.25 mm 1.65 mm 17G MN -17G -13 1.11 mm 1.49 mm 18G MN -18G -13 0.92 mm 1.28 mm 19G MN -19G -13 0.72 mm 1.08 mm 20G MN -20G -13 0.61 mm 0.91 mm 21G MN -21G -13 0.52 mm 0.82 mm 22G MN -22G -13 0.42 mm 0.72 mm 23G MN -23G -13 0.34 mm 0.64 mm 24G MN -24G -13 0.31 mm 0.57 mm 25G MN -25G -13 0.26 mm 0.52 mm 26G MN -26G -13 0.25 mm 0.46 mm 27G MN -27G -13 0.21 mm 0.42 mm
