Building Materials
The nominal size of the modular brick is

190 mm × 90 mm × 80 mm
200 mm × 100 mm × 100 mm
190 mm × 190 mm × 90 mm
200 mm × 200 mm × 100 mm

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Building Materials
Sapwood consists of

Portion of timber between heartwood and cambium layer
Innermost annular rings around the pith
Thin layers below the bark
Thin fibre which extends from the pith outwards and holds the annular rings together

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