YG20 bụ ụdị simenti carbide, kpọmkwem tungsten carbide.Ọ naghị enweta ọgwụgwọ okpomọkụ, nwere otu isi ike dị n'ime na nke mpụga, ọ dịkwa mma maka mmepụta oke.YG20 dabara adaba maka ịme stamping ebu, dị ka stamping watch akụkụ, musical spring sheets, wdg, ...
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