仙子玉腿缠腰娇喘迎合,亚洲精品高潮久久久久久日本,国产精品成人久久,国产精品18久久久久激情,久久九九免费看少妇高潮A片

鉆探抽沙船,鉆探抽沙船廠家-青州冠誠重工機械有限公司

Drilling pump sand pumping vessel, drilling manufacturers preferred

冠誠鉆探抽沙船：
鉆探式抽沙船的概述：本設(shè)備為鉆探式抽沙船,抽沙部分是機械系統(tǒng)。適用于有泥層的水庫或河道抽沙等工作。抽沙設(shè)備操作方便，工作效率高、投資見效快、維修方便、油耗小、污染小等優(yōu)點。抽沙設(shè)備適應(yīng)環(huán)境:河道內(nèi)有泥層、石子含量少（≤20%），石子直徑不大于30mm。適應(yīng)溫度：高40℃，低-10℃.大風(fēng)速不超過4級�！�

Prudential crown drilling sand pumping:
Overview of drilling pump sand: This equipment for drilling pump sand, sand pumping part is a mechanical system. Applicable to the reservoir with mud or river sand etc.. Sand pumping device has the advantages of convenient operation, high work efficiency, investment has the advantages of quick, easy maintenance, low oil consumption, small pollution etc.. Sand pumping device to adapt to the environment: the river mud layer, gravel content is low (below 20%), stone diameter not more than 30mm. To adapt to the temperature: the highest 40 ℃ -10 ℃, the lowest maximum wind speed does not exceed 4.