The lined brake shoes passed the U.S. DOT/NHTSA LABORATORY TEST PROCEDURE FOR FMVSS 121D AIR BRAKE SYSTEMS-DYNAMOMETER TP-121D-01 by Greening Testing Laboratories Inc. The brake linings are produced without
asbestos, so it is good for environment protection. These products are manufactured with ISO 9001:2000 certification issued by Q.A. International Certification LTD. The production capacity reached 1 million brake shoe assemblies and 2 million brake linings per year.