Qingdao Puhua Heavy Industrial Group i whakaturia i roto i te 2006, tapeke whakapaipai rēhita i runga i 8,500,000 tara, rohe katoa tata 50,000 mita pūrua. Kua paahitia e to taatau kamupene te CE, nga tiwhikete ISO. Ko te hua o a maatau hua kounga teitei, ratonga kiritaki me te utu whakataetae, kua kaweake e matou to matou miihini ki nga whenua 90 neke atu, penei i USA, Russia, Germany, Ahitereiria, Saudi Arabia, Brazil, Ukraine, Egypt, India, Vietnam etc .