In 2017, Anyang Railway Equipment Co., Ltd(AT) provided 50kg/m sleeper fittings (joint splint, high-strength track bolt with grade 8.8, grade 10 high-strength nut with grade 10, single coil spring washer) and 60kg/m sleeper fittings (joint splint, Grade 10.9 high-strength bolts, grade 10 high-strength nuts, high-strength flat washers) for Huangda Railway.