ceiling joist造句怎么写

In double floors, its own ceiling joists or bearers carry the ceiling of the room below.

However, relatively few of the secondfloor ceiling joists themselves were damaged.

Poles can be held in place by using threading to brace them against a ceiling joist.

Is a modern sizeable enterprise which specializes in production of all kinds of ceiling grid, partition joist, PVC ceiling joist and sprayed joist.

At the lower end of each roof slope, eaves purlins are provided over the ceiling joists.