Mbiri ya UL
M’zaka za m’ma 1890, ku United States kunali moto waukulu.Choyambitsa chinali magetsi. Pofuna kupewa ngozi zina, Bambo William h.Merrill adakhazikitsa UL (underwriters laboratories) mu 1894. Pa Marichi 24, 1894, adasindikiza lipoti lake loyamba la mayeso ndikuyamba ntchito yake yoteteza chitetezo.UL ndi bungwe la US loyesa chitetezo chazinthu ndi ziphaso komanso woyambitsa miyezo yachitetezo chazinthu zaku US. Kupitilira zaka zana, UL yayesa miyezo yachitetezo pazinthu zambiri ndi zida.
UL ku China
Pazaka zapitazi za 30 +, UL yakhala ikuyang'ana pa kukula kwa zopangidwa ku China. Pamene UL inalowa ku China mu 1980, inakhazikitsa ubale wabwino wa mgwirizano ndi China inspection and certification (group) co., LTD.(CCIC) .Mgwirizanowu unayamba ndi kupereka ntchito zolondolera mafakitale a ku China ndikuthandizira zinthu zaku China kulowa msika wa kumpoto kwa America.Pazaka zapitazi za 10, UL yakhala ikugulitsa ndalama zambiri m'mafakitale am'deralo ndikumanga gulu la akatswiri kuti apereke zinthu zosavuta, zofulumira komanso zosavuta. ntchito zabwino zakomweko kwa opanga aku China.Ku China, mafakitale ndi opanga oposa 20,000 atsimikiziridwa ndi UL, UL certification service hotline 0755-26069940.
Mtundu wa chizindikiro cha UL
Kukula kokhazikika kwa chizindikiro cha UL
Anbotek UL ovomerezeka
Pakadali pano, Anbotek wapeza chilolezo cha WTDP cha ul60950-1 ndi UL 60065, zomwe zikutanthauza kuti zolosera zonse ndi mayeso a mboni zitha kumalizidwa mu anbotek, kuchepetsa kwambiri kuzungulira kwa ziphaso.Satifiketi yakuvomerezeka ya Anbotek ili motere.
