Well vacuum annealing series furnace use pre-vacuum atmosphere protection work way, before filling high purity nitrogen or ammonia decomposition protective atmosphere heating, the furnace will be evacuated to a vacuum degree to achieve a non-oxidizing heating and no bright ...

Hangzhou Hangshen Energy-Saving Furnace Co.,Ltd    [Home Appliances]   [Air Conditioning Appliances]   [2015-09-19 11:01:35 ]