Profile of PVC condole top is empty, both sides is between honeycomb shape is enclosed sheet, has the processing molding tongue-and-groove and convex great.
PVC吊顶型材是中间为蜂巢状空洞、两边为封闭式的板材，有加工成型的企口和凸棒。
A molding for a cornice, having a partly concave and partly convex curve in profile, used especially in classical architecture.
反曲线饰纵断面部分为凹线，部分为凸形的檐口的线脚，尤用在古典建筑中。
The upwards convex table board is formed by a secondary mould pressing and one-step molding method.
本发明的方法采用二次模压一次成型的方法形成上凸台面。
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