An employee works on a radiator assembly line at Shandong Yinlun Heat Exchange System, a high-tech company in the zone. [Photo provided to China Daily]

However, at the very beginning, the company experienced some problems in selling its products.

"Many things were better for us than for foreign products. For instance, our costs were only one-fifth that of imported products. However, we encountered problems in promoting our products to new clients at the very beginning," said Wang Xiuqiang, chief engineer of Litro.

"Only some small companies in small cities tried our products. Large companies did not want to risk failure."

After identifying Litro's bottlenecks, the zone facilitated the manufacturer to contact Weichai Power, which was significant to help Litro to win Weichai's orders with its premium products.

This year, the zone has undertaken a series of measures to support high-growth businesses. It established a business evaluation system to ensure businesses get more support if necessary.

Shandong Cameron Petroleum Equipment, a ball valve supplier in the zone, had been experiencing limited production capacity and space in recent years. The company was offered a long-term tenancy of a new plant, funded by the government, to solve its production capacity problems.

"If businesses have any requests, the zone will provide support policies to help them. Companies need only to focus on development and production," said Sun Wenfeng, director of the zone's economic development bureau.

Sun said the zone will continue providing premium services and promoting communications among the small high-tech companies.

Companies with technology, talented people or unique advantages will enjoy more support, he added.

Yang Shichao contributed to this story.