DD FASTENERSfuthi kuvunywe isitifiketi se-ISO 9001 kanye nokusebenza kwezimboni okwenziwa ngokwezinga le-6S.DD FASTENERSathobela kokubili i-DIN kanye namazinga omhlaba, ukuhlinzeka ngohlu olugcwele lwemikhiqizo.
Imishini yokulwa nokugqwala ebambisene nobuchwepheshe baseJalimane, ukuvikelwa kwemvelo, i-anti-acid, umswakama nokumelana nokushisa, imibala ehlukene, ukuhlolwa kwe-salt-spray sekufinyelelwe emahoreni angu-3,000.
I-DD fastenersinohlelo lokulawula oluzenzakalelayo kusuka ezintweni ezingavuthiwe ukuya emikhiqizweni eqediwe futhi ifakwe imishini yokuhlola ikhwalithi ephelele.
DD FATENERSfuthi ithatha isikhundla esihamba phambili esifakwe ngokuzenzakalelayo i-Vickers eseceleni, umshini wokuqina omncane, umshini wokubonisa idijithali we-Rockwell, umshini wokuhlola oqinile, umshini wokusika isampula ye-metallographic, umshini wesivinini sokumba isikulufu, ithuluzi lokulinganisa isithombe, umshini wokuhlola wokudonsa kanye negumbi lokuhlola ukugqwala kukasawoti kanye nomshini ofakwe ugesi njll.