DHDZ ndiye muyezo wadziko lonse wokhala ndi opanga khosi la flange. kampaniyo ali amphamvu luso mphamvu, akhoza kupanga ndi kupanga specifications zosiyanasiyana chapadera cha mankhwala chitoliro koyenera malinga ndi zofunika wosuta. Ndi kuwunika kwa metallographic, kuyesa kwakuthupi, kusanthula kwamankhwala, kuyesa kosawononga ndi zida zina zapamwamba zoyesera ndi njira.
Opanga flange amachita makamaka: gb khosi flange, khosi lathyathyathya kuwotcherera flange, khosi matako kuwotcherera flange, khosi sanali muyezo flange ndi mitundu ina ya khosi flanges. Ine chomera ali ndi chiwerengero chachikulu cha payipi akatswiri ogwira ntchito msana, zida zopangira zida zapamwamba ndi zitsulo zowoneka bwino, kuzindikira zolakwika, kuyezetsa thupi ndi mankhwala ndi zida zina zoyezetsa, kampaniyo imatsata mosamalitsa dongosolo loyang'anira. Kukhazikitsa dongosolo lotsimikizira zaubwino wasayansi, njira yabwino yotsimikizira zamtundu wabwino komanso ukadaulo wopanga zasayansi zimatsimikizira kuti zinthu zili bwino.

Opanga a DHDZ Flange amakhazikitsa dipatimenti yoyang'anira khalidwe ndi malo oyesera, okhala ndi zovekera zapaipi zapamwamba komanso zopangira zapakatikati ndi zotsika kuthamanga zitoliro ziwiri zoyesa, kuyesa ntchito kutha, zida zoyesera ndi zida zili pamlingo wapadziko lonse lapansi komanso wapakhomo, Pali X-ray kuzindikira cholakwika, kuzindikira kwa tinthu tating'onoting'ono, kuzindikira kolakwika kwa akupanga, kusanthula kwazitsulo, mayeso amankhwala, kuyesa kwazinthu zamakina, kuyesa kwazinthu, kuyesa kuwunikira, kuyesa kwamadzi ndi zina.
China gb khosi flange opanga - kupambana ndi khalidwe, phindu laling'ono koma mfundo kubweza mwamsanga, mosalekeza patsogolo, mu mpikisano woopsa msika, ndi mgwirizano wabwino ndi mtima utumiki mzimu kupambana ambiri makasitomala kukhulupirira ndi chitukuko mofulumira. Kuti tipite patsogolo, kufunafuna kuchita bwino, kuphunzira mosalekeza, osakhutitsidwa ndi chikhulupiriro cha makasitomala athu kuti apange mwayi wopambana kawiri, kupanga tsogolo labwino.