Brass tube for engineering model making diy 12mm 16mm 19mm 25mm 32mm 38mm 50mm

32mm outside x 30mm inside (1 1/4"). 38mm outside x 36mm inside (1 1/2"). 19mm outside x 17mm inside (3/4"). 16mm outside x 14mm inside (5/8"). 50mm outside x 48mm inside (2"). 25mm outside x 23mm inside (1").

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