KHCOD-100型8孔COD自动消解回流仪(8个300ml直瓶)KHCOD-8Z为8孔COD国标法消解回流装置(8个250ML锥形瓶)KHCOD-8K为8孔控温式COD国标法消解回流装置(8个250ML锥形瓶)
