坦桑尼亚采购需求：蒸发器除霜加热器、除霜加热管、除霜加热元件、铝箔加热器、排水管除霜加热器、曲轴箱加热电缆

I would like to request a price quotation for two types of heaters. The first is a drain line heater, with a power rating of 25W and voltage of 230V, and I'm looking to purchase a total of 5 units. The second item is a defrost heater, rated at 640W and also operating at 230V, for which I need 5 units as well. Could you please provide me with the pricing details, availability, and any other pertinent information related to these items? Your prompt response would be greatly appreciated as I am keen to move forward with this purchase. Thanks!