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By certification 
(1)Standard: ASTMA325, A490
(2)Grade: A490/A490M.
(3)Size: M6-M80, 1/4"- 3"
(4)Material: Carbon Steel, Alloy Steel
(5)Finish: plain, black, zinc, zinc yellow, PTFE,etc.
(6)Packing: 1.Less than 25kgs bulk into carton, then packed on pallet 2.Small box or color box, then into carton, then packed on pallet 3.As customers' request.
(7)Payment terms: T/T, L/C, Western Union.
(2)Grade: A490/A490M.
(3)Size: M6-M80, 1/4"- 3"
(4)Material: Carbon Steel, Alloy Steel
(5)Finish: plain, black, zinc, zinc yellow, PTFE,etc.
(6)Packing: 1.Less than 25kgs bulk into carton, then packed on pallet 2.Small box or color box, then into carton, then packed on pallet 3.As customers' request.
(7)Payment terms: T/T, L/C, Western Union.
