通过改进浇注系统，特别是采取在进、排气道芯砂中添加特殊抗脉纹添加剂及在砂芯表面涂刷烧结型涂料等工艺，有效地预防和消除了脉纹缺陷。
Veining defects have been effectively prevented and eliminated by improvement on gating system, especially by special additive to core sand and sinter coating on surface of sand core.
用剩余的白乳剂或底漆涂刷所有你打算涂抹的表面(桌腿、整洁的桌面、还有椅子的各个地方)。
Use leftover white emulsion or an undercoat primer on all the surfaces you plan to paint (the table legs, the trim of the tabletop and all over the chairs).
最后一层涂层应涂刷均匀一致没有任何表面缺陷。
The last layer is to be applied uniformly, with no surface defects.
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