jonyang@jonyang.com +86-15308526758、+86-13078521618 +86-18785138377、+86-15185117573
Irobhothi yokudiliza iphucula ukhuseleko kunye nokusebenza kakuhle kulwakhiwo ngokwenza ukuba ukudilizwa okulawulwa kude kwimimandla eyingozi, ukubonelela ngamandla e-hydraulic, uzinzo, kunye nokuchaneka kwiiprojekthi zangoku ezidolophini.