普通低合金结构钢
general structure low-alloy steel
Q345低合金高强度结构钢
Q345 HSLA structural steel
低合金高强度结构钢
low-alloy high-tensile structural steel
high strength low alloy structural steels
high strength low alloy structural steel
肋柱式锚杆支挡结构
column-anchor retaining structure
垒结构
potential barrier structure
类DOS结构设计
structure design similar to DOS