our welding electrode and wire have supplyed to Worthington Cylinders,Armstrong company.Have CCS,ABS,BV,NK,DNV,LR and GL our welding electrode factory is established in 1972,have approved by seven China Classification Society(CCS),Det Norske Veritas(DNV),Lloyd's Register of shipping(LR),American Bureau of shipping(ABS),Bureau Veritas(BV),Germanischer Lloyd(GL),and Nippon Kaiji Kyokai(NK).