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A.K.Trading Corporation .
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About Us
We arequire high tensile spring steel wire ,
JISG 3521, for sofa / mattress spring SWG 13 / 2.25 mm.
Carbon content 0.65-.070 SW C QUALITY .
TENSILE STRENGTH : 165-170 PER KG M/ SQUARE .
WIRE FROM 1.8 MM TO 2.5 MM.
also required spring coiling machine and spring knotting machine for making mattress / sofa spring .
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