Brass wing nut DIN,ANSI,BS Brass,carbon steel, stainless steel Haiyan Pufa Metal Co., Ltd. is a comprehensive company integrating manufacturing and ... a good reputation in fastener industry. Company Name:Haiyan Pufa Metal Co., Ltd. Business Type:Trading Company Product/Service(We Sell):wire rod ... Information Factory Size:10,000-30,000 square meters brass wing nut/forged wing/butterfly nut