The company not only services the repair and maintenance of various equipment produced by itself, but also undertakes the operation and maintenance services of other manufacturers' equipment in related fields. Currently, the company undertakes the repair and maintenance of Sinopec and PetroChina's natural gas compressor sets, engine sets, valves, instrumentation and transportation. At each service site, the company usually assigns a senior technical engineer who has worked in the oil industry for more than 10 years as the project manager for the regular operation and maintenance of natural gas compressors and various types of equipment.