In the November of 2019, African customers from afar conducted on-site inspections and tests on the seamless steel pipes produced in our factory before it was shipped, including production documents and inspection reports; on-site partial tests were carried out to inspect the product quality. This FAT on 13cr(13 chrome) tubings was supervised and inspected by the user, so the process was conducted meticulously and strictly. And successfully the results all met the quality standards and achieved high customer satisfaction.