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...free except for the polar caps. This is the situation today, when its axial tilt is 25⁰ (similar to Earth’s 23⁰ axial tilt). However, possibly because Mars lacks a large moon to stabilise its spin, there have been times when its spin axis was tipped over by up to 60⁰ – allowing the polar ice caps to spread, maybe even to the extent that there was abundant ice...

...although not as good as high pressure die casting. Design capabilities are very similar to gravity die casting, and fins and walls down to approximately 1 mm thick can be produced. See Also: Gravity die casting, High pressure die casting, Vertical high pressure die casting, Acurad process, Pore-free die casting, Hyperforge process, Squeeze casting and Investment casting....

...free from swarf and grit and should not be damaged due to handling. Any machining, drilling and welding should be carried out before anodising. The final appearance of the component is largely dependent on the type of pre-treatment carried out before anodising. Types of pre-treatment range from mechanical processing such as “abrasive polishing” to chemical treatments...