环纹钉  Annular thread nails

直径Diameter:4d-20d

长度Length：1.5 inches—— 4 inches 

材质Material：Q195

表面处理Finish:H.D.G. and P.C. Bright, E.G., C.C., V.C., 

包装规格：散装（25公斤/箱）或者小包装（有或没有商标）或者根据客户的要求

Packing specification: Bulk (25 kgs/box) or small packing (has or does not have trademark) or according to customer request