Hebei Zhengwu International Trade Co. , LTD is one of the biggest manufacturer and trader for brake drums, flywheels, clutch disc, gear rings and water pumps in China, especially brake drums, flywheels & gear rings for heavy- duty vehicles. The company was certified with ISO 9001. The products are selling well to all over the world like Europe (England, Poland, Romania etc. ); North America (Canada, USA); Middle East (Iran, UAE etc. ) ZW. WP VEHICLE O. E. M NUMBER TYPE - ENGINE ZW. WP- 001 MERCEDES- BENZ 3552000801 - 1101 - 1501 - 0901 OM 355 / A ZW. WP- 002 MERCEDES- BENZ 3662005901 - 0901 - 4601 - 0401 OM 366 / A / LA ZW. WP- 003 MERCEDES- BENZ 4222001101 OM 422 - 442 ZW. WP- 004 MERCEDES- BENZ 4032004901 - 3501 - 7001 - 2701 - 3201 - 3401 OM 401 - 404 - 407