Ndewo, onye ọ bụla, anyị bụ Fuzhou Bontai Diamond Tools Co.; Ltd na China, bụ ọkachamara.diamond egweri akpụkpọ ụkwụ, diamond iko wiil, Mpempe akwụkwọ na-egbuke egbuke, Ngwa PCD egwerinwere ihe karịrị afọ 30 ahụmahụ. Anyị ga-aga World of Concrete Asia 2021, biko lee ozi ụlọ anyị n'okpuru:

Aha ngosi: World of Concrete Asia

Adreesị: Shanghai New International Expo Center (No.2345, Longyang Road, Shanghai, China)

Ụbọchị: Nov. 30th ~ Dec. Ọnwa Abụọ 2, 2021

Ụlọ ntu Nọmba: W3F06

Na-atụ anya mbata gị.