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IBRAR
RIE
Practical experience for engineering students in the Heat Treatment Shop of the Hong Kong Polytechnic's Industrial Centre. They are hardening carbon steel components by means of an 'oil quenching' process.
L
|
IBRAR
RIE
Practical experience for engineering students in the Heat Treatment Shop of the Hong Kong Polytechnic's Industrial Centre. They are hardening carbon steel components by means of an 'oil quenching' process.
L