求翻译： PVC管检验：管子和管件的颜色应一致，无色泽不均及分解变色线；内外壁应光滑、平整、无气泡、无裂口、无明显痕纹和凹陷；接口配合面应光滑平整。是什么意思？

 pvc pipe inspection: pipes and pipe fittings, color should be consistent, color and uneven discoloration decomposition line; inside and outside walls should be smooth, flat, no bubbles, no gap, no obvious scar patterns and depression; interface with the surface should be smooth.

*  PVC tube inspection: tubes and tube should be a part of the color, luster and decompose discoloration is not online; and outside wall should be smooth, flat, no bubbles, no cracks, no obvious scratches and dents; interface should be smooth and flat surface.

 PVC tube examination: The pipe and the fitting color should be consistent, does not have the luster uneven and the decomposition changes the streak; In the outer wall should smooth, smooth, not have the air bubble, not have the opening, the not obvious mark grain and hollow; The connection fitting

PVC pipe inspection: the color of tube and pipe fittings should be consistent, no color and decomposition of uneven discoloration lines; Interior and exterior walls should be smooth, smooth, no bubbles, no cracks, no obvious trace lines and dents; interface mating surfaces should be smooth.

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