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Professional Support Wins Recognition! Shiheng Special Steel Sends Commendation Letter for Our VFD Maintenance Service
Update time:2026-04-15Views:
Recently, Ducheng Industrial received a heartwarming token of recognition. The Equipment Department of the Rolling Mill under Shiheng Special Steel Group Co., Ltd. specially sent a commendation letter, highly praising our company for the successful completion of the maintenance, repair and capacitor replacement project for Siemens S120 variable frequency drives.

This letter of appreciation not only represents the client’s recognition of Ducheng Industrial’s robust technical capabilities, but also serves as the finest testament to our service philosophy of professionalism, efficiency and rigorous standards.


01 Efficient Contract Performance – Full-process Maintenance of 43 Units Completed Within One Month

The project was awarded on December 29, 2025, and fully delivered on January 26, 2026, with a total construction period of less than one month. The service team of Ducheng Industrial efficiently and high-quality completed the full maintenance work for 43 variable frequency drives in the section steel overhaul project of Shiheng Special Steel:

The team finished site environment assessment, equipment parameter backup and safety disclosure in advance. Core procedures including VFD disassembly, deep dust removal, thermal grease replacement, circuit board cleaning and insulating varnish spraying were implemented with high precision. All DC capacitor replacements and full-component performance tests of every device were accomplished in strict compliance with high standards. The team honored its service commitment with professional expertise through standardized operation and well-organized progress, winning unanimous trust from all personnel at the project site.

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Industrial Manufacturing


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02 Inspired by Praise – Deepen Service & Write a New Chapter of Cooperation

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A letter of commendation signifies recognition as well as motivation. The affirmation from Shiheng Special Steel serves as solid testimony to the service quality of Ducheng Industrial.Moving forward, Jiangsu Ducheng Industrial will continue to uphold our service tenet of "Professionalism, Efficiency, Rigor and Accountability". We will refine our expertise and deliver superior services to provide solid guarantees for stable equipment operation for more industrial clients. We look forward to advancing hand in hand with more partners to achieve outstanding results together!

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