It is important especially for installation on concrete roofs, because the nail must hold onto the concrete and guarantee that the shingles will not blow away.
在混凝土屋面，钉子抗拔力的大小尤其重要，因为钉子必须保证玻纤瓦固定在屋面上而不被风刮走。
Millstone, sandpaper, nail file, granite surface, concrete walls and floors above all contains material, will be scratched surface of these materials.
磨石、砂纸、指甲锉、花岗石面、混凝土墙面及地面等均含有以上物质，会刮花这些材料的表面。
Our company manufactures and sales all kinds of the nails, such as lined nails, Plastic strip nail, galvanize nails, popular coil nails, concrete nails, screw nails and so on.
缙云县欣宇金属制品有限公司是一家专业生产塑排钉、卷钉、紫铜钉、不锈钢钉、镀锌钉和无头钉等的出口私营企业。
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