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Rubber wheels: Good elasticity, suitable for clay or damp soil.Metal wheels: Strong durability, suitable for gravel ground, but need to be equipped with buffering devices to prevent damage to the seeds.

The Chinese rubber industry adheres to technological progress and innovative development, achieving earth shaking changes. During the planned economy period, a complete industrial system was built, and after the reform and opening up, technological progress and product updates were achieved, growing into a world rubber industry powerhouse. Especially since the new century, China's rubber industry has shifted from quantitative changes to qualitative changes, and is moving towards becoming a strong rubber industry country.

Although we belong to different product standard committees from the National Technical Committee for Standardization of Rubber and Rubber Products, which formulates composite rubber standards, the requirements for standard implementation are the same.

After more than 160 years of development, the global rubber industry has become an important traditional industry in many developed countries. Currently, the annual rubber consumption worldwide exceeds 17 million tons, and there are about 100000 types of rubber products covering various fields of human society.