Zheng Sai's redundant resilient ecological sustainable concept slope protection technology can grow grass without being washed away, and its anti-frost heave technology has been highly recognized by the client and supervisor of the Yunnan power Station.

In November 2024, Mr. Lin, the general manager of the Design Institute, visited Zhengsai Group Company for an inspection. He originally planned to stay for an hour, but found that Zhengsai had many high-tech products and was very interested. Before he knew it, he stayed for a whole day. Wang Fuzhou, the chairman of Zhengsai Group, accompanied Mr. Lin from the meeting room to the application site, elaborating in detail on the research and application of various technologies. Especially Zheng Sai's redundant resilient ecological sustainable concept slope protection can grow grass without being washed away. Moreover, it has anti-frost heave technology and has withstood the tests of the 720 extreme rainstorm in Henan in 2021 and the 2023 extreme rainstorm in Hebei without being washed away. Even now, the slope is still lush and green, which has attracted the high attention of Mr. Lin. He said that he and the owner were very dissatisfied with the current slope spraying and greening technology in China. It was very easy to be washed away by heavy rain and the later maintenance cost was huge. We are currently seeking a slope greening plan for the project that will not be washed away by heavy rain.

In early 2025, General Manager Lin invited Zheng Sai Technology to Yunnan to conduct a test section. The initial results were recognized by the client and the supervisory party, but the project was still snatched away by the construction party, who used ordinary spray seeding technology to carry out greening treatment on the slope. In June 2025, the south entered the rainy season and heavy rain hit. The redundant and resilient ecological slope of Zheng Sai was in full bloom and had not been washed away.

Zheng Sai's redundant resilient protection technology withstood the test in the torrential rain in the south and did not cause any mountain collapses

The slope made by the construction party using ordinary shotcrete technology was severely damaged, causing serious losses to the client.

In the torrential rain in the south, the common spray seeding protection technology causes severe collapses, road disruptions and serious lossesAfter a fair comparison test during the heavy rain, Party A highly recognized Zhengsai's redundant protection technology and required that all slope protection for the four projects adopt Zhengsai's reliable sealing protection technology to eliminate potential problems.