Lizi Compressor (Shanghai) Co., Ltd. founded in 2015.Which is specialized air and gas compressors equipment manufacturer in Shanghai China.Starting from year 2022,we use our oil-free screw air compressor to build small-scale      biogas recovery and upgrading system.Capable of meeting the national first-   class natural gas standards.We can provide comprehensive services covering the entire process and all aspects, including engineering consultation, project design, equipment production, engineering construction, and operation services.