DD FASTENERSAsambodo ISO 9001 kwadoro yana ọrụ ụlọ ọrụ a rụrụ dịka ọkọlọtọ 6S siri dị.DD FASTENERSna-agbaso ma DIN na ụkpụrụ mba ụwa, iji nye ngwaahịa dị iche iche.
Ngwa mgbochi corrosion na-arụkọ ọrụ na teknụzụ Germany, nchebe gburugburu ebe obibi, mgbochi acid, mmiri na nguzogide dị ọkụ, agba dị iche iche, ule ịgba nnu eruolarị ruo awa 3,000.
DD fastenersnwere usoro njikwa akpaghị aka site na akụrụngwa ruo na ngwaahịa emechara yana akụrụngwa nnwale zuru oke.
DD FATENERSna-ewerekwa ọkwá dị elu nke nwere akụkụ Vickers na-akpaghị aka, igwe siri ike micro, ihe ngosi dijitalụ Rockwell ngwa, igwe nnwale tensile, igwe na-egbutu metallographic, igwe na-agbagharị igwe na-agba ọsọ, ngwa nha onyonyo, igwe na-adọpụpụta na ụlọ nyocha corrosion nnu na igwe elektrọn wdg.