It is made of extremely rugged heavy-gauge black powder-coated steel.
它是由非常坚固重轨黑色粉末涂层钢板。
2
A black staircase that winds up through the narrow home was lined with white powder-coated metal guards that are perforated.
一部黑色的楼梯蜿蜒通过狭窄的家，楼梯使用了白色涂层的金属穿孔板。
3
The white, powder-coated, vertical aluminum fins that wrap the building give a kinetic quality to the facade, which changes as one moves past the building.