... Screen,filter,shield, guard... Material:Stainless Steel stainless steel punch sheet 1) Hole shape: square, round, oblong, triangle 2) Materials: stainless steel, carbon steel, copper, brass, cold rolling ... galvanized or Stainless steel hole mesh Material: SS/carbon steel/Gal./Aluminum /brass/copper/Al-Mg alloy plateNickel platevarious patterns mainly standard perforated patterns ...