The file hard (60rc) high strength aluminum alloy tube provides a smooth corrosion free sealing surface and excellent abrasionresistance.
文件的硬(60rc)高强度铝合金管提供了一个平稳无腐蚀密封面和良好的耐磨性。
2
It has a rolled, rigidized surface which gives it a high modulus of rupture and compressive strength as well as high abrasion and hot gas erosion resistance.
它具有滚压刚化表面，不仅断裂模数大、耐压强度高，而且具备良好的抗磨损和抗热气腐蚀能力。
3
New environment-friendly water-based varnish: excluding ketones, volatile organic compounds were very low; durability and good abrasionresistance, surface hardness of up to 2H.