模具控制4.5mm-5mm，然后煅烧会有点变形，每次会有差异，所以可能

The mold control is 4.5mm-5mm, and then the calcination will be a little deformed, and there will be differences each time, so there may be changes. But from the data, the outer diameter and inner diameter are very stable. It may also be caused by bad methods when measuring thickness. <br><br>If you tell the customer directly, we control the thickness to be no less than 4.5mm. <br><br>However, when the outer diameter is reasonable, the thickness will vary. Thicken as the mold changes

Mold control 4.5mm-5mm, and then calcination will be a bit deformed, each time there will be differences, so there may be changes. However, from the data, both the outer diameter and the inner diameter are stable, and may be due to poor measurement of thickness<br><br>If you say directly to the customer, that is, we control the thickness is not less than 4.5mm<br><br>However, if the outer diameter is reasonable, the thickness will thicken with the change of the mold

Mold control 4.5mm-5mm, then calcination will be a little deformation, each time there will be differences, so there may be changes. However, from the data, the outer diameter and inner diameter are very stable, which may be caused by the poor technique in measuring thickness<br>If it is said to the customer directly, it is that we control the thickness not less than 4.5mm<br>But in the case of reasonable outer diameter, the thickness will become thicker with the change of die<br>