ในเวลากลางคืนเราพบว่าปัญหาที่เกิดขึ

At night, we found that the problems that occurred in the carving is chemical vapour.And vapors that are mounted in the structure, such as a ceiling crane, adhesion, and agglomerate that sometimes fall to the workers, and the structure is damaged. Equipment parts are stainless steel.

At night, we found that the problem in a carved into the vapors of chemicals
and vapors that are trapped in the structure of adhesion, such as cranes, ceiling and lumpy sometimes fall on workers and structure. damaged Rusty parts

At night, we found that the problem occurred in the carving is volatile chemicals
and vapors to stick in the structure adhesion, such as craneThe ceiling and coagulate sometimes fall to the workers and the structure damaged parts rust.