Tianjn pingfeng tyre protection chain co., ltd is a professional provider specializing in tyre protection chain. If you need, you can contact Emily. The msn is emilyseller at hotmail doc com or you can by skype is guolehuan. The product are adaptable to various types of loaders and heavy-duty trucks. the function of the products is to protect the tyre of truck under various working condition such as mines, quarries and tunnels.