Banye nkwekọrịta ntinye nke Unvanized nke Graveral Nchebe Gburugburu nke luri / steel nke nwere ndị ahịa Indonesia

N'ọnwa Ọktoba afọ 2017, anyị bịanyere aka na nkwekọrịta nke nchara pipe / luel proces-zuru ezu na ndị ahịa Indonesia;