Basic Info Model NO.: WVA:19591 BFMC:BC/81/1 Material: Non-Asbestos Classification: Drum Specification: ISO-9001,TS16949,FMVSS 121 23K FF,SABS VC8053 HS Code: 87083095 Type: Brake Lining Certification: ISO/TS16949, TS16949, ISO9001, SGS, AMECA, Greening,SABS Vc8053 Trademark: CHANGDA Origin: Zhejiang, China Product Description Drum: 420mm Inner arc: 203.9mm Width: 220mm Thinkness: 17.5/11.8 IT FITS FOR BPW AXLES. WARSTEIN. Specifications: 1. Noiseless, 100% asbestos free and excellent finishing. 2. Longlife time in toghest road condition. 3. Exceptional stopping power. 4. Lower dust level. 5. Works quietly.