Tianjin Yuantai Derun Gulu lalikulu ndi amakona anayi welded zitsulo mapaipi anapatsidwa AAAAA mankhwala chitsimikizo ndi Institute of Metallurgiska Viwanda Planning.

Malinga ndi zofunika zenizeni za "kutsimikizirani" kwa lalikulu ndi amakona anayi welded mipope zolinga structural, lalikulu ndi amakona anayi mipope zitsulo kwa zolinga zonse structural, muyezo bwinobwino amaona kusasinthasintha khalidwe, ndemanga khalidwe, chitsimikizo mankhwala, mphoto aulemu pa mlingo mankhwala. , luso lotsimikizira zamabizinesi, kuthekera kwatsopano, kukhulupirika kwabizinesi, mulingo wautumiki, mulingo wa chidziwitso ndi zina.Kukhazikika pa kufala kwa luso lotsimikizira mtundu wa malonda ndi mtengo wamtundu wazinthu, kukulitsa miyeso yasayansi, yololera, yapamwamba komanso yogwiritsidwa ntchito, imapereka maziko a sitepe yotsatira ya chitoliro chomangika, chitoliro chonse chozizira kapena chotenthetsera chotenthetsera chitsulo chitoliro chotsimikizika. certification brand, kulima ndi kumanga zitsulo zopangidwa "assured brand".