"New" gear, screw - using high quality materials, after high-frequency heat treatment, increase the service life of the machine.
“新型”齿轮、螺杆——选用优质材料，经过高频热处理，增加机器使用寿命。
Matchine parts, choose quality stell, the heat treatment of high strength never deformation.
机床部件， 剪板机选用优质钢材，经高强热处理永不变形。
The roller - hearth furnace production line imported from abroad is characteristic of good heat - treatment quality, high production efficiency and large range of work.
从国外引进的辊棒炉生产线，热处理质量好，生产效率高，加工范围大。
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