thick walled cylinder by seamless steel pipe

例句：

1. 1. The construction of this thickwalled cylinder is crucial for the stabilityof the bridge.
   这座厚壁圆柱的建造对于桥梁的稳定性至关重要。
2. 2. The seamlesssteel pipe used in thisproject is of high quality andmeets all safety standards.
   该项目中使用的无缝钢管质量上乘，符合所有安全标准。
3. 3. The engineercarefully selected the right thickness anddiameter of the steel pipe to ensurethe structural integrity of the building.
   工程师仔细选择了合适的钢材厚度和直径，以确保建筑物的结构完整性。