Ngwa Ngwuputa HFD na-enwu na ngosi nka nka nke International Trenchless China nke iri abụọ na asaa
A sọpụrụ HFD Ngwuputa Ngwá Ọrụ isonye na 27th China International Trenchless Technology Exhibition, nke bụ emume na-achịkọta teknụzụ na-enweghị trenchless zuru ụwa ọnụ na ngwaahịa dị oke ọnụ. Ọ bụ ezi...