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Teknik <strong>pengecoran</strong> logam<br />

Gambar7.14 Jangka banci digunakan untuk menentukan titik pusat<br />

Gambar 7.15 Penyetelan<br />

dengan jangka ganjil dengan<br />

kaki terbalik<br />

Gambar 7.17 Menggores<br />

sejajar bagian luar<br />

Gambar7.16 Menggores sejajar<br />

bagian dalam<br />

Gambar 7.18 Trammel (jangka<br />

batang)<br />

Hardi Sudjana Page 233

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