... 3.longer service 4.low price always,quick delivery T-shaped steel mounting bracker welding with threaded holes namematerialdimension(mm ... steel,alloy steel ,Aluminum ,Aluminum alloy,brass ,copper or special for customersmain market: German , Japan ,France ,Mid east,Africa ... technology supplied by customers is high appreciated.ask us for your enquiry! T-shaped steel mounting bracker welding with holes