Fortune Telling Collection - Ziwei fortune-telling - What kinds of fences can be divided according to their uses?
What kinds of fences can be divided according to their uses?
Bio-cement fence has the functions of preventing and controlling sand, improving natural conditions and improving benefits. Railing: it is a safety facility on bridges and buildings, which requires firmness and beauty. Formally, railings are divided into two types: internode type and continuous type. The former consists of columns, handrails and crosspieces, and the handrails are supported on the columns; The latter has continuous handrails, which are composed of handrails, railings and bases. Common types are: wooden railings, stone railings, stainless steel railings, cast iron railings, cast stone railings, cement railings and composite railings. Railings play the role of separation and guidance in use, so that the boundaries of the divided areas are clear and definite. The railings designed are very decorative. Generally, the height of low hurdle is 0.2 ~ 0.3m, the height of middle hurdle is 0.8 ~ 0.9m, and the height of high hurdle is1.1~1.3m. The torque between railings is generally 0.5 ~ 2m.
- Previous article:In what ways did ancient widows vent their sexual desire?
- Next article:Lagerstroemia indica in the mountains
- Related articles
- Crossing Wei Zi Gege
- What flowers bloom in July?
- How old is Mr. cv Cen?
- What are the scenic spots in the Forbidden City?
- The omen of dreaming of a sick brother
- Telephone numbers of all three-star hotels in Jinan
- My father's surname is Hu, and he was born at 7 am on the first day of this year. How to name girls? help
- Erkang, why can't I see you?
- Where does Victoria Song dance the pole?
- Ziwei is mild.