天天干天天色色色,国产成人一区二区在线影视,欧美一区二区在线观看精品久,东京热tokyo综合久久精品,2025国产天天干,亚洲精品久久久岛国,亚洲在线一区二区三区,91精品麻豆久久久国产

8613564568558

Pre-bored Pre-cast Piling Equipment

  • Pre-bored Pre-cast Piling Equipment

    Pre-bored Pre-cast Piling Equipment

    The pre-bored precast concrete pile construction method is to use pre-bored pre-cast piling equipment for drilling, deep stirring and expanding the bottom, and finally implanting the pre-cast pile body. It’s a pile foundation method with various combinations of different types of the prestressed high strength concrete knot diversion pile (PHDC), prestressed high-intensity concrete pile (PHC), prestressed reinforced high strength concrete pile (PRHC) under sequence as pilling, Root-enlarging, Injecting, implanting.