Four indexs of casting property
举一反三
- The property of heat-clearing and fire-purging medicine used for high fever is ___________(four Qi)
- What are the“Four Great Inventions”of ancient China? ( ) A: Paper-making technology B: Movable-type printing technology C: bronze casting technology D: compass E: gunpowder
- Sand castingSand casting, the oldest casting process, consists of
- Important considerations of casting
- Which process involves dipping a seed crystal into a molten silicon liquid and pulling it upwards at a specific rotational speed? A: Multicrystalline ingot casting B: Float-zone pulling C: Czochralski casting D: Silicon wire casting