Tianjin durable metal products limited was established in 2003. The company is a research and development, production, sales of tyre protection chain enterprises. Our company developed and produced the tyre protection chain loader, mining machines, large mining equipment such as heavy duty truck tire life expectancy, low efficiency of problem, particularly in the mining area, large load of quarry equipment tire a shorter life-span of problems for the job. Use our tire protection chains that can significantly improve the efficiency of mining equipment tires, extending the life of the tire, greatly reducing the high cost of replacement tires, bring direct economic benefits to the user, was welcomed by the majority of users.