Peb yog cov chaw tsim khoom tshaj lij.peb lub Hoobkas muaj ntau yam keeb kwm.nyob ze rau tianjin chaw nres nkoj.peb tsim cov hmoov square raj, pre galvanized square raj, kub dip galvanized square raj thiab dub square raj .Tam sim no peb cov khoom raug muag thoob plaws lub ntiaj teb no.Siv nyob rau hauv engineering thiab tsev cov ntaub ntawv.Ntau lub tsev nyob rau hauv dubai thiab Middle East tej yaam num los ntawm peb cov factories.