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… Answer: Jarrah is less prone to tannin staining than merbau but can still produce quite a lot of tannin. We … Answer: Jarrah is less prone to tannin staining than merbau but can still produce quite a lot of tannin. We …
… Q 2. Same hall same timber poles as Q 1 - specified 'red ironbark narrow leaf. Certifier is concearned with durability … hazardous situations without treatment. The heartwood of ironbark is too dense to pressure treat effectively. In any case ironbark has a high level of natural durability and is …
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