Shimian Bosen Technology Abrasive Co., Ltd. was founded in 1975. It is currently a professional enterprise producing boron carbide in China. The company is located in the northeast corner of Mudanjiang City, which is known as "Northern Saijiang River". The company covers an area of ​​10,000 square meters. It has modern factory buildings, elegant environment and beautiful scenery.

Luoyang Naipute New Material Technology Co., Ltd. focuses on the production and sales of wear-resistant materials, non-metallic wear-resistant materials, metal wear-resistant materials, carbide wear-resistant materials, composite ceramic wear-resistant materials, metal surface wear-resistant coatings, wear-resistant coating materials and other wear-resistant repair materials. Contact phone manager: 17737905110

Qingdao Zhongzhida Environmental Melting Equipment Co., Ltd. is dedicated to external hot air blast furnaces, iron transfer, automatic pouring machines, iron ladles, workshop dust removal, electric furnaces with additives, and rock wool production lines. After more than a decade of hard work and outstanding innovation, it has gradually developed from a small-scale enterprise into a backbone enterprise in China's foundry machinery industry's environmental melting equipment and dust removal equipment manufacturing.

Zhangjiakou Expressway Development Co., Ltd. (hereinafter referred to as Zhangjiakou Expressway Development Co., Ltd.) was established on December 6, 2019. It is a state-owned joint venture limited liability company approved by the Hebei Provincial Department of Transportation and registered in Zhangjiakou City. It is affiliated to Hebei Transportation Investment Group Co., Ltd. with a registered capital of 2 billion yuan and a total asset scale of 62 billion yuan.