what are the types of wire rod lean tube?
publisher: administrator date：2019-12-07
the first generation of lean tube: 0.8mm / 1.0mm / 1.2mm / 1.5mm / 2.0mm (steel thickness);
second generation lean tube: 0.8mm/1.0mm/1.2mm/1.5mm;
the third generation of lean tubes: 1.2mm / 1.7mm (basic bar thickness).
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