... , an excellent wear resistance, the service life of up to several thousand hours, the overall structure of rational ... effort, and with rapid restoration pieces. Commodity OTR Tyre Protection ChainMaterialalloy steelSpecifications16/70--20,16/70-24,17.5-2.5 ... at home and abroad as domestic loader. The companies adhering to the” quality- oriented, for-letters, contracts and trustworthy” otr tyre chain