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By certification 
(1)Standard: ASTMA194/194M,
(2)Grade: 2H/2HM/7/7M, 8/8M.
(3)Size: M6-M100, 1/4"-4".
(4)Material: Carbon Steel, Alloy Steel, SS.
(5)Finish: black, plain, zinc, zinc yellow, HDG, 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.
(2)Grade: 2H/2HM/7/7M, 8/8M.
(3)Size: M6-M100, 1/4"-4".
(4)Material: Carbon Steel, Alloy Steel, SS.
(5)Finish: black, plain, zinc, zinc yellow, HDG, 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.
