Pretensioned Spun High Strength Concrete Piles  预应力高强砼管桩

Pretensioned Spun Concrete Pile  先张法预应力混凝土管桩; 预应力管桩

precast pretensioned concrete beam  预制先张混凝土梁

PRETENSIONED CONCRETE  先张拉混凝土

Pretensioned Spun high Strength Concrete Pile  PHC管桩

centrifugally spun concrete pipe  离心浇制混凝土管

centrifugally-spun concrete pipe  离心浇注混凝土管

Large Diameter Spun Piles  大直径管桩

prestressed spun concrete pile  预应力混凝土管桩

shearing formula of spun concrete pile  管桩抗剪公式

Spun Concrete  旋制混凝土

spun concrete pipe  石屎筒; 离心浇制混凝土管

thin wall steel spun concrete pole  薄壁离心钢管混凝土支柱

bored concrete piles  钻孔灌注桩

cast in situ concrete piles  钻孔灌注桩

Cast-in-Situ Concrete Piles  钻孔灌注桩

Center Bored Concrete Piles  中心压灌桩

Concrete Piles  灌注桩; 混凝土桩

drilling bored concrete piles  钻孔压灌桩