特別な指示のない限り、溶接後密閉となる内面、コンクリート埋設部分、アル

特別な指示のない限り、溶接後密閉となる内面、コンクリート埋設部分、アルミニウム等の特殊材料には塗装しません。

Results (English) 1:

Not painted on the inside, unless special instructions would be sealed after welding and concrete underground parts, aluminum and other special materials.

Results (English) 2:

As long as there is no special instructions, the inner surface to be a post-weld sealed, concrete buried part, the special material, such as aluminum, it does not paint.