Хятад дискний тусгаарлагч үйлдвэрлэл, үйлдвэр | Ёнгуанг
We provide all different type of bolt and nut, include carbon steel, brass and stainless steel. Steel bolt and nut surface processing way has Electric galvanize and Hot dip galvanize. Bolt and nut have different grades. For example, 4.8grade, 8.8grade, …