is her pink pussy too small for this ginger tiny girl vs big black strapon dildo

Set as home page | Collect this website Welcome to Hebei Jushi environmental protection equipment Co., Ltd!
National Service Hotline thirteen billion eight hundred and twenty million two hundred and two thousand five hundred and ninety

 Hebei Jushi environmental protection equipment Co., Ltd

contact us

Mobile phone: 138202590

You Are Here: Home page > Company news >Text

General provisions for integrated prefabricated pumping stations

Author: Dongfeng leasing source: Date: 2020 / 7 / 13 16:10:31 popularity:

1. The general layout requirements and site of prefabricated pump station shall be determined by technical and economic comparison according to geological conditions, engineering design and pump station operation.

2. The layout of prefabricated pump station shall comply with the provisions of code for structural design of water supply and drainage engineering (GB 50069) and the following provisions:

1) : meet the requirements of mechanical and electrical equipment layout, installation, operation and maintenance;

2) : meet the structural layout requirements;

3) : meet the requirements of ventilation, heating and lighting, and meet the technical requirements of moisture-proof, fire prevention, noise prevention, energy conservation, labor safety and industrial hygiene;

4) : meet the transportation requirements;

5) : make the layout beautiful and coordinate with the surrounding environment.

3. The floor elevation of prefabricated pump station shall be determined according to the installation elevation of water pump, the layout of inlet channel or pipeline installation requirements, as well as the terrain and geological conditions where the prefabricated pump station is located.

4. The layout of auxiliary equipment, electrical equipment, pipelines, cable ducts, etc. installed around the pump in the prefabricated pump station shall avoid cross interference.

5. The noise during the operation of prefabricated pump station shall comply with the current national standard code for design of noise control in industrial enterprises (GB / t50087).

vrallure busty ebony beauty daizy cooper plays with her sex toys in virtual reality loan4k le banquier est pret a aider une fille si elle donne quelque chose en retour daddy4k sweetie and boyfriends old dad celebrate her birthday with sex whiteboxxx horny blonde chrissy fox gets her tight pussy fucked hard by her boyfriend letsdoeit daddy4k papa intelligent ne perd pas sa chance davoir des relations sexuelles avec ses fils nouvelle copine