Brief Introduce:

1.Mainly use for  powder metallurgy sintering, annealing of magnetic materials and some small metal parts, such as watch case, strap, kitchenware industry of annealing, quenching and stainless steel bright annealing, especially Cr13 stainless steel quenching, stainless steel solid solution treatment, etc.

2.Ammonia gas ( decomposition into 75% hydrogen gas and 25% nitrogen gas ) : The surface of wokrpieces is bright without oxide layer with protective atmosphere