March 20 Beijing-Zhuhai high-speed explosion, occupying the emergency lane of the car all the firefighters with forklift shovel high-speed, insurance does not lose money.
Quantitative analysis of the problems in safety construction. In order to solve this problem, you must first understand the specification. However, the specification is not enough, not only to understand the safety load of scaffolding. Please forgive me, I am not here, in the past, it is too much trouble. In this process, the construction specification is calculated. Technical specification for safety of fastener type steel pipe scaffold (JGJ130-2001)
Ice in the water like the food market has seen a lot of frozen fish should not be expensive
Want to know the density, we must first know that you want the board of the flame retardant grade is a few levels, or can not tell you how much density, and each company's products do not rush to avoid the rules, but also the density of the same Not the same, very different!
