The first Nigerian sand and gravel production line of China Railway Construction Heavy Industries has been put into operation since May 17.，It has been operating steadily for nearly four months in Bauchi, Nigeria, a high temperature area in Africa.。The sand and gravel production line is suitable for the working conditions in the tropical areas of Africa.，Withstood 45℃～55℃Daily high temperature environment test，About 70000 tons of sand and gravel aggregates have been produced for road construction.，Sand and gravel will continue to be supplied in the future.，Continue to help local construction。

Construction site

The sand and gravel production line has passed the factory acceptance.，All of them will be transferred to the overseas project site by sea in early March 2022.。Early stage of the project，The R & D team of China Railway Construction Heavy Industry Co., Ltd. communicated with the customer and confirmed the process technology scheme.，Timely dispatch service personnel to foreign sites to assist civil engineering、Installation、Commissioning and training，Domestic technicians provide remote technical support throughout the process.，To provide customers with a full range of services，Obtain favorable comments from customers。

The scene of the opening ceremony

With the joint efforts of both sides，Hilla Sand and Gravel Processing Plant of China Railway 18th Bureau Group Nigeria Company was put into operation as scheduled。During commissioning，Tiejian Heavy Industry Sand and Gravel Production Line Stable、Efficient performance is recognized by customers，Successfully completed the site acceptance。