1. heavy duty piano hinges 2. power coating finish or electroplating plating finish 3. standar open width and thickness Price (USD)EX-worksFOB GuangzhouMaterialsteel,stainless steel,iron,brass,aluminium …Finishmaterial nature color,brushed,polished,mirror,colored zinc/copper/blue zinc/nickel/gold/ brass/chrome/zinc plated, white /black/gold/baige/grey color spray painting Overall lengthfrom 20mm- ...