Note 2: the properties and rules for the use of indented bars with precast concrete products may be found in the relevant product standard.
注2：与预制混凝土产品一起使用的刻痕钢筋的性能和规定在相关的产品标准中可以查到。
Technology: cast iron heating it to good precast bent for the heating requirements. Add to die, from using hot metal casting, then finished, to be the ideal product.
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。
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