semifinished material
1.Theoretically, the new synthetic process of NDI was put forward using NDA and methanol as raw material merely, BTC and DMC as semifinished product.
2.One part is the fundamental processing of metope, namely make level, burnish, press reseau belt to wait, build the semifinished product house of hand over a completed project like earth, metope can have the difference of 2 centimeters of above commonly, this needs the fundamental processing of early days; The 2nd part just is the exterior material of the wall body that we see.
