Handan Haosheng Fastener Co., Ltd. is a large professional company specializing in manufacturing and exporting fasteners and non-standard fasteners, such as hex nuts, hex bolts. Introducing the first-level equipment, we specialize in developing and manufacturing hex nuts, bolts and non-standard fasteners of various specifications. We have a high level automation and high-quality nut design process. With an annual sales value of over 1 million US dollars and years of marketing experience, we ...