prince tennis racketandFactory launch rating

an ,buy hogan, building construction category and grade
tin be classified in another ways :
1, are divided into three categories according to use : industrial buildings , agricultural construction,prince tennis racket, civil construction.
2, according to the main load-bearing building of the substance is divided into five categories : adobe - wood , brick, brick , reinforced concrete framework, steel structure .
3, by direction of load-bearing structures are divided into four categories: wall bearing type, load-bearing frame , and interior skeleton bearing type, spatial structure of load-bearing type.
4, civil construction wafers divided by five categories :
a, low-rise buildings : the main manner 1 to 3 story residential building.
b, high-rise building : mainly refers to the 4 to 6 story residential building.
c, in the high-rise building : mainly refers to the 7 to 9 story residential buildings.
d, high-rise building : effectively refers to the 10 apt 30 story residential creating alternatively the aggregate elevation of extra than 24 meters of public buildings and comprehensive structure (not including single- altitude of extra than 24 meters of the chief building .)
e, high-rise building : over 100 meters of the building.
class of the building namely the importance of bombard safety , durability and the duration of the building level by different angles . Civil department level may be in the following ways :
1,bose headphone, divided into 5 of importance such for :
a, PL : a important commemoration, historical ,head tennis racket, worldwide and national types of structure.
b, A-level : High residential buildings and public buildings.
c, B : intermediate residential buildings and public buildings.
d,nike dunk shoe, C class : General residential buildings and public buildings.
2, divided by four fire extravaganza : fire resistance rating is divided into four buildings . Standard fire resistance rating is based above the main components of the combustion housing and fire resistance decided.
3, along durable life of sub- four :
a, a durable life of 100 years for major construction and high-rise buildings.
b, 2 durable life of 50 to 100 years, for general construction.
c, 3 durable life of 25 to 50 years because secondary buildings.
d, four durable life of 15 years for transient buildings.

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