Thermal shrinkable materials for electronics and electricity are the leading products of thermal shrinkable materials in China. China has a large number of manufacturers of electronic heat-shrinkable materials, but they mainly focus on low-end market competition. Thanks to the increase in the investment scale of China's power grid, the demand for power thermal shrinkable materials is strong. It is expected that the output of thermal shrinkable cable accessories in China will reach 9.75 million sets in 2011, and the market capacity of thermal shrinkable materials for electricity will reach 2.03 billion yuan.

China's auto thermal shrinkable materials market is mainly occupied by American rikan and sumitomo electrician, and domestic enterprises only account for 20% market share. However, with the comprehensive approval of domestic thermal shrinkable materials in the automotive industry and the advantage in price, the market share of domestic thermal shrinkable materials is expected to further increase.

The three companies of American rikan, changyuan group and wolverine have occupied a total of 66% of the hot shrinkable materials market in China in 2010. Ruikan is the world's largest manufacturer of thermal shrinkable materials. Its main products include thermal shrinkable sleeve, communication cable accessories and thermal shrinkable cable accessories. Its thermal shrinkable products monopolize most international markets. Especially in the field of aerospace and military applications, regan has absolute competitive advantage.

Changyuan group mainly produces heat-shrinkable sleeve for electronic, automobile and oil and gas pipelines, and maintains the first and second position in China and the world in heat-shrinkable materials industry. In 2010, the production capacity of heat shrinkable tube of elder park group was 1.64 billion meters, and the revenue of heat shrinkable materials business was 647 million yuan, among which the sales revenue of high-speed rail heat-shrinkable materials products was 80 million yuan. As the only enterprise with the certification of high-speed rail heat-shrinkable materials in China, this field is expected to become a new profit growth point of changyuan group.
As an important domestic production base of heat-shrinkable materials, wolfram mainly produces heat-shrinkable products in electronic and electric categories. In 2010, it sold 1.15 billion meters of heat-shrinkable tubes in electronic categories, ranking first in China for 3 consecutive years. In 2011, with the new production capacity project of wolverine nuclear material, the production scale will be greatly increased.

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