... or any other length [Usage] gyspum drywall suspension ceiling system. [Packing ] 50pcs bundle by steel strapping or plastic ... by ISO9001, we apply the most strict quality control system, three steps inner inspection. We export monthly about ... angle, cold rolled structural framing, CD60, cable tray,cable ladder,cable basket,cable support system,drywall linings, drywall steel sections, drywall framing ...