Our materials mainly are C1022，SUS410, SUS304, SUS316, SUS550, SUS304/316+SCM435, and we produce coated self-drilling screws, bi-metal self-drilling screws, stainless steel self-drilling screws and other fastener products. BOITO specializes in design, research and development, production and sales, providing professional services for manufacturers of curtain walls, steel structures, solar energy, communication equipment, animal husbandry construction, ships and power facilities. There are successful engineering cases in major cities at home and abroad. And there are 26 distributors nationwide. Because of our efforts and adherence to the business philosophy, BT brand products are now exported to the United States, Germany, Italy, Australia, Indonesia, Malaysia, the Netherlands, the UAE, Vietnam, the Philippines, Thailand, South Korea, Japan, Denmark, Bulgaria, India, and other countries and get the recognition and good feedback from customers at home and abroad.