Acoustic tube specification size weight gauge

The weight table of acoustic measuring tube specifications and dimensions is as follows: unit weight calculation formula (unit: kg/unit) (outer diameter – wall thickness) * wall thickness *0.02466, where the outer diameter refers to the outer circumferential diameter of pile acoustic measuring tube;The wall thickness is the difference between the outer diameter and the inner… Read more Acoustic tube specification size weight gauge

The stairs can’t even waste a corner, why didn’t you think of the bookshelf wall as an extension?A study for nothing

House area is small not afraid, want you to plan well only, can be more than big house function, design feeling is dyein, practical stronger!Take his home for example, the area is only 30 square meters, not only realize the room in the room, only a bookshelf wall, can extend the stairs and mini desk,… Read more The stairs can’t even waste a corner, why didn’t you think of the bookshelf wall as an extension?A study for nothing