In 2022, the company will expand the plant construction, add 2 automatic production lines, a digital heat treatment production line, and upgrade the surface treatment production line.

The new product developed by the company in 2020: 10.9-level weather-resistant and delayed-fracture-resistant bolts for bridges passed the technical review meeting of the expert group

In 2019, the Changjin brand was rated as a well-known trademark in China by the Trademark Office of the State Intellectual Property Office.

2017 Won the high-tech enterprise certificate

Passed the European standard CE certification in 2016 and started the export business of products

At the end of 2005, it passed the national ISO9001 quality management system certification, ISO14001 environment and OHSAS28001 occupational health and safety management system certification

2005 年设备进厂投产

In 2004, the company established a factory