ਰੋਜ਼ਾਨਾ ਪੁਰਾਲੇਖ: ਨਵੰਬਰ 30, 2019

Titanium alloy and aluminum alloy are similar in the following aspects: both metals are used to manufacture aircraft structural parts, in which case 90% of the materials may need to be ground off before the parts are completed. Many stores…