China die casting
https://u-ssr.com/post/49208_china-die-casting-https-www-yumpu-com-en-document-read-65923566-aluminium-die-ca.html
The casting parts that are created by this process can vary greatly in size and weight, ranging from a couple of grams to 40 kg. One common application of die casting parts is housings thin-walled enclosures, often requiring many bosses & ribs on the interior of casting. Metal housings for a variety of appliances and equipment are often using die casting parts.
Alu die casting