工艺：铸铁加热板它把预制好的加热管弯曲成所需要求。放入模具中，用铁水浇铸而成，然后进行精加工，从而得到理想的产品。用途：用于油扩散泵加热、高温塑机加热。特点：耐高温、使用寿命长、缺点太笨重。Technology:castironplateheatedittogoodpre-heatingofthenecessaryrequirementsofbending.Addtothemold,andcastfrommolteniron,thenfinished,tobetheidealproduct.Use:theproliferationofpumpsusedforheatingoil,high-temperatureelectricheating.Features:hightemperatures,longlife,disadvantagestoocumbersome.)