Certificate of Quality: ISO 9001:2000 All series Materials: 40Mn steel Color: Dark blue,Bright DIN/ISO ... for the following period: 2013/03/05 --- 2014/03/05 All the information below may covers both Gold Supplier and its ... Industry Roller Chain, Conveyor Chain, Leaf Chain Industry Roller Chain, Conveyor Chain, Leaf Chain: 12,000.00 Tons Per Year Industry Roller Chain, Conveyor Chain, Leaf Chain: 9,933 ...