This short presentation tells the story behind Chengdu Sincere Da Machinery, a 40-year factory in Chengdu, China. See how triplex plunger pumps are built, from 100 to 6000 bar and 10 to 400 L/min, and watch real applications: oil refinery pipe cleaning, heat exchanger cleaning, ship hull cleaning, paint and rust removal, plus pressure testing for fuel pipelines and gas steel bottles. Learn how a 200-person team ensures safety, stability, and easy maintenance.