SMOOTH V series cut off copper, aluminium row fracture with no deformation.
字系列，切断铜铝排断口平整，不变形。
It is a rather good auxiliary material with good resistance to oxidation at high temperatures and electrochemical corrosion and with no deformation when operating at high temperatures.
具有良好的高温抗氧化能力和抗电化学腐蚀能力，在高温操作条件下不变形，是比较好的高温辅助材料。
Optical ball with acrylic cover, good transparency, no deformation.
采用亚克力光学球罩，透光性好，无变形。
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