At the end of 2020, an Algerian client came to Youniker for a ZT1962 valve sack tuber and a FM2018 valve sack bottomer. We proposed a tailoring plan for the clients based on their needs, the method to calculate the costs for paper bags production, and then we introduced the production process of valve sacks. The ordered machines arrived at the client's plant in March, 2021. Then in May, 2021, Youniker's installation helping staff arrived at the client's plant to help installing and adjusting the machines. We also offered a user's guide and management plan to the client, training the client's production staff. While adjusting the valve making machines, Youniker's engineers assisted the client to fix the client's auxiliary machine, gaining high recognition for our products and services. The client ordered for another HD8916 valve sack bottomer (both end pasted) in 2022.