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www.honghuamach.com - Jiangyin City Jiangnan Light Industry Machinery Factory, Screw and pole: 蠁65mm,L/D:30:1, material:38CrMoAl銆?font color=CC0033>hardness treatment; 2.T shape stretchy mould: 1100mm, material:38CrMoAl, hardness treatment and grinding; ...
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