walker 1)Model:9144L 2)Materials:Aluminum alloy 3)Standard:ISO9001:2000,ISO14001:2004,GB/T28001-2001 4)MOQ: 5 pcs walker 1)Model:9144L2)Materials:Aluminum alloy3)Standard:ISO9001:2000,ISO14001:2004,GB/T28001-20014)MOQ: 5 PCSMOQ:100PC.can order small quantity as sample