Before we have also introduced the u-shaped steel support , it is a cross section like the English letter "U "steel, the latest specification is released in 2008, in April 1, 2009 began to implement t

Because channel steel and U - shaped steel look similar, so many people think they are the same product, in fact, it is not. Today I'm going to show you how to distinguish between channel steel and u-

U-shaped steel support has the advantages of high initial support force, large support strength, easy installation, and not easy deformation, etc., so it is often used in the manufacture of tunnel fle

Procurement of steel needs to have a pair of "fire eyes", in order to quickly have a good distinction between the quality of steel. In fact, as long as master "six see a listen", you can also distingu

Attention should be paid to the construction of u-shaped mine roof support: when erecting the mine roof support, the working platform must be built at the construction place, and the vertical leg of t

Compared with other rigid supports, u-shaped steel supports have flexible, stable and reliable bearing capacity, adapt to the load and deformation of soft surrounding rock, high utilization rate of se