Ụlọ ọrụ mmepụta ihe dị elu nke Hebei Guoning Heavy Industry Manufacturing Co., Ltd.
Ụgwọ nke ụlọ ọrụ Shijiazhuang Guoning Trade Co., Ltd

Ọ bụrụ na ị nwere mmasị na ngwaahịa anyị ọ bụla mgbe ị lere ndepụta ngwaahịa anyị, biko kpọtụrụ anyị maka ajụjụ. Ị ga-enwe ike izipu anyị ozi-e ma kpọtụrụ anyị maka ndụmọdụ, anyị ga-azakwa gị ozugbo anyị nwere ike.