3600A auto part brake drum

Brake drum   Description
1.Metertrial:gray iron HT250/GG25 
2.Chermical composition:
C:3.0-3.3%  Si:1.6-1.9%  Mn:0.7-0.9%
P:<0.12%    S<0.12%
3.Mechanics performance:
Main body degree of hardness:163-255HBS
Testing rod tensile strength:>=220mpa 2507B brake drum and wheel hub 2508 brake drum and wheel hub 2508A brake drum and wheel hub 2511A brake drum and wheel hub 2512 brake drum and wheel hub 2516 brake drum and wheel hub 2517 brake drum and wheel hub 2517A brake drum and wheel hub 2517C brake drum and wheel hub 2517F brake drum and wheel hub 2517G brake drum and wheel hub 2517H brake drum and wheel hub 2517M brake drum and wheel hub 2517N brake drum and wheel hub 2521 brake drum and wheel hub 2521D brake drum and wheel hub 2523 brake drum and wheel hub 2536 brake drum and wheel hub 2536 brake drum and wheel hub 2539 brake drum and wheel hub 2540 brake drum and wheel hub 3574X brake drum and wheel hub 3575 brake drum and wheel hub 3576 brake drum and wheel hub 3593 brake drum and wheel hub 3595 brake drum and wheel hub 3595A brake drum and wheel hub 3596B brake drum and wheel hub 3596X brake drum and wheel hub 3597B brake drum and wheel hub 3600A brake drum and wheel hub 3600AX brake drum and wheel hub 3600B brake drum and wheel hub 3601 brake drum and wheel hub 3603 brake drum and wheel hub 3605 brake drum and wheel hub 3607 brake drum and wheel hub 3608 brake drum and wheel hub 3609 brake drum and wheel hub 2545 brake drum and wheel hub 2545A brake drum and wheel hub 2546 brake drum and wheel hub