Hai Yan Xian Tong Lian Biao Zhun Jian Co., Ltd. is established in 2009. We are specilized in producing all kinds of nuts, bolts, threaded rods and other non-standard fastenrs such as L-bolt, J-bolt and U-bolts. All our products are exported to USA, UK, Canada, Europe, Middle-East area and other regions and countries.