The company mainly produces high-strength fasteners business, bolts and nuts are the main, the main standard are DIN/ANSI\ASME/JIS/UNI/ISO/AS/BS/GB and so on. The product massively applies in the bridge\road\the petroleum pipeline facility\the wind power generation and steel structure project. Carbon steel bolts mainly have 4.8, 5.8, 6.8, 8.8, 10.9, 12.9, nuts mainly have 4, 6, 8, 10, the main material of stainless steel fastener is 201\304\316. QBH from its establishment to he present, after ten years of development, it is equipped with perfect testing equipment, and SGS and TUV have a good cooperation, each batch of products is accompanied by a 3.1 or 3.2 certifi
