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 > Industry trends >Text

Construction points of integrated prefabricated pumping station

Author: Dongfeng leasing source: http://zacharypierpont.com Date: 2020 / 7 / 13 16:09:15 popularity:


Construction preparation:
1.1 before the installation of pump station, corresponding technical disclosure work shall be done.
1.2 the drainage system in the construction area of the pumping station shall be planned and arranged according to the topography, meteorology, hydrology, geological conditions and drainage volume of the station area, and shall be compatible with the off-site drainage system. Intercepting ditch should be set around the foundation pit.
1.3 before the installation of pumping station equipment, it is necessary to study the installation drawing of mechanical and electrical equipment, and determine the construction technology adopted by the pump and electrical equipment. In the construction process, complete construction quality inspection procedures and control measures must be established.
1.4 on site equipment, tools and construction materials shall be placed orderly at fixed points, and the site shall be kept clean and the passageway shall be unblocked.
1.5 before construction, the construction signs and observation instruments shall be buried. Site observation and record shall be made during construction.
2 pump pit excavation
2.1 there should be a pump pit excavation plan and the excavation should be carried out in strict accordance with the plan.
2.2 the excavation section of foundation pit shall meet the requirements of design, construction and slope stability of foundation pit.
2.3 dewatering measures should be taken at the bottom of pump pit.
2.4 appropriate foundation pit support method shall be adopted to avoid collapse of pump pit.
2.5 after the completion of pump pit excavation, the pump station installation can only be carried out after confirming that the site conditions such as inlet and outlet pipes and cables of the pump station are available.
3. Installation of concrete base plate
3.1 the bottom of the pit should be flat and paved with a 10 mm thick gravel layer.


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