Wuxi Changrun is subsidiary of Jiangsu Sunshine Forging Co., Ltd and it was founded in 1993. The company manufactures forged flanges, tube sheet, baffles plate, plate, fitting, ring, nozzle, reinforcing tube, pipe and various forgings for various heat exchanger, boilers, pressure vessels, reactor and colume according to international and national standards (ASME, ASNI, DIN, GB, JB/T, SH, HG, DG, etc.) with various materials (carbon steel, alloy steel including steel used for high-temperature and low-temperature, stainless steel including duplex steel, nickel steel and etc.). The products are widely used in petroleum & chemical industry, electric industry (nuclear power, wind electricity, thermal power), light manufacturing, machinery, metallurgy, ship craft and etc. 

During the past years, the company has provided large numbers of flanges and steel forgings used for boilers and pressure vessels to many large petrochemical enterprises such as SINOPEC, CNPC and CNOOC.

The company is qualified with completely certifications and it has already got the certificate for Quality System Authentication certificate conformity with ISO9001: 2015, ISO14001: 2015, GB/T 18001: 2007 Safety registration certificate of manufacturing unit of pressure pipes and fittings, manufacturing license for special equipment pressure pipes and fittings, manufacture certificate of civilian nuclear safety mechanical device of People's Republic of China issued by NNSA ， measurement and management system certificate, Obtained the PED/CE&AD-WO certificate of TUV, ABS, BV, CCS, NK, RINA, DNV, KR, LR and other classification society certificates; in 2018, it obtained the API certification of the American Petroleum Institute.