Kwa afọ, Hebei Ximai na-ebupụ ihe karịrị puku puku ọkpọkọ ọkpọkọ na akụkụ mapụtara.The ọkpọkọ na-agụnye ejima mgbidi ọganihu ọkpọkọ, oche ọkpọkọ, anwụrụ reducers maka ọganihu gwongworo na shotcrete igwe, ihe washout akpa, ọganihu elbows, akara mgbapụta ọkpọkọ na bends na wdg The mapụtara akụkụ ekpuchi a ezi ...
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