Established in 1978, Shanghai Red Flag M/C Tool Electric Factory CO., LTD. is a professional manufacturer with several decades of experience in transformer production, including various control transformers, reactors, three phase dry-type transformers and marine transformers, etc. Our products have increased from two series of control transformers as BK and BKC in the early stage, to over a decade of series with more than 100 products, including BKZ, JBK, SG, CDGD, CSGD, CSD, QZB and BDK, 40% among which are become the part of export products of each consumer, launched in Southeast Asia and regions and countries in Europe and America.

We have been engaged in marine transformer production in early 1990s, and our products have passed the product inspections of many foreign classification societies, including DNV, ABS, LR, GL and BV Classification Society. Most of our products are designed for oil storage tankers, container ships and bulk freighters, serving ships from 1200TEU container ship up to 300,000 ton suspending oil storage tankers.

During the past several decades, we alwasy have devote our self to pursuit of the outstanding quality of our products, in 1994, our products have passed the Factory Type Approval of China Classification Society; in 2001, our JBK3 series products have passed the CE Authentification of Rhineland Company in Germany and exported to the EEC countries;our quality management system has obtained ISO9000 Certificate from the China Classification Society Certification Company; in 2005, we passed the Factory Approval of France (BV) Classification Society. Obtaining all these approvals and certifications has furthered promote and guarantee the quality of our products. We have abundant human resources, consummate professional skills and advanced manufacturing equipments, with a large-scale production capacity of various transformers below 1000KVA.

Our Dengxin brand JBK series control transformers have been becoming the parts of electrical, light, machinery and machine tool industries at home and abroad over the years, which are widely applied in electrical apparatus control system. In recent years, we have been constantly improving the intrinsic properties and appearance quality of our products, winning consistent recognition from our customers. "Always adhere to our production standards" is our persistent professional ethics. We are willing to feed back our customers with first-ranking brand and perfect service with heart and soul.