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Rekayasa Screw Pyroliser untuk Menghasilkan Char dari Sampah Kota Terseleksi
(Universitas Muhammadiyah Surakarta, 2012-12-18)
Commercially pure (cp) titanium has a relative soft hardness property. In particular usage such as
sliding, the improvement of the hardness value will be required. To improve the hardness of the
surface while maintaining ...