Như các bạn đã biết trong ngàng xây dựng của chúng ta có rất nhiều vấn đề can quan tam , va hôm nay tôi sẽ trình về mot trong nhung vấn đề quan trong do la storege of chemicals and fuels and materials
As you know in the time of our building has a lot of problems can the view tam, va today I will process of mot important issues by the Velvet in la storege of chemicals and fuels and materials
As you know in our building coming with a lot of issues of concern, and today I will submit to one of the issues is important and Fuels storege of chemicals and materials