... and so on, making the basic machining facility for finished machining of heavy duty shaft products. With the100t, 50t, 32t bridge crane ... so on.Our heat treatment capacity:shaft: the hardening and tempering, surface quenching for all kinds of shaft no longer than 16m, large ... , surface quenching for large size gear(modulus over 5 and diameter within 10m.) all kinds of alloy shaft per drawings and ...