It is based on the preservation and maintenance business that our company has undertaken a large number of large-scale maintenance projects for energy companies and chemical companies in recent years. The main businesses are Beilun Power Plant #4, Jiaxing Power Plant #6, and Jiangsu Yushan Power Generation Co., Ltd. # 1. Maintenance and repair of electric thermal control unit C of No. 2 Unit C, overhaul of Huaneng Yuhuan Power Plant's annual No. 1 unit C-level maintenance, No. 4 unit electrical standard of Changxing Power Plant, and turbines, etc.; to strengthen the company's power plant sector With the maintenance capability, our company has established a long-term cooperation mechanism with Ningbo Fu Shida Power Engineering Co., Ltd.

The large-scale maintenance projects of chemical companies are more voluminous to our company. As our company has provided high-quality maintenance and maintenance work, it has been well received by the owners, and it is the annual planned overhaul of each unit. The suspension and overhaul and large- and medium-sized technological transformation and technical projects basically entrusted the construction of our company. Representative achievements include: Ningbo Juhua Technology Co., Ltd. equipment and pipeline maintenance and repair, electrical installation and maintenance maintenance; Zhejiang Iron & Galvanic vacuum unit maintenance (imported units); Zhenhai refining ethylene cracking distribution, ethylene second overhaul; Ningbo sea The overhaul of electrical overhaul in 2017 was overhauled; Ningbo Apex was suspended for overhaul in 2017; the entire plant was overhauled; Ningbo Guangchangda EVA continuous distillation project construction (pressure vessels and pipelines); Zhejiang Steel Gale and Guangchangda were moved every year, static, The planned overhaul of electric and instrument equipment and technological reform and technical measures have entrusted us with construction.