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Question:

Inside the ceiling 38 with 50 light steel keel is what it means

I think 50 of the main keel 38 for the vice keel, but it is necessary to use such a big? Ordinary residence inside the ceiling

Answer:

General ceiling with 30 * 40mm, light steel keel sub-keel and vice keel, the main keel commonly known as 38 bones, that is, the specifications are 38mm × 3000mm whole root profile, vice keel commonly known as 50 bones, that is 50mm specifications 3000mm
You say is the gypsum board ceiling, also known as large board ceiling 38 is the main bone, and with 38 anti-50 pendant fixed 50 horizontal bone 50 pairs of bone in the top of the vertical and horizontal arrangement, the center line to the center line distance is 350mm * 450mm 38 The width of the bone is 38mm, the width of the 50 bone is 50mm, their length is 3m. Home with wooden keel on the line, why use light steel keel, and now the house is not high net high, boom also accounted for space. You use the white pine saw the keel on the very good

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