• Determination of internal coating of steel barrel

    Time:2021/10/8 16:23:27views:

    The user can provide samples of various internal coatings (including no internal coating and iron series phosphating coating) by the steel barrel manufacturer, conduct the compatibility immersion test under similar environmental conditions for storage and transportation for more than 6 months, analyze whether the coating changes and whether the pigment contained in the coating is dissolved, and then the user can determine and select the appropriate type of internal coating. There is no inner coating, and the surface is protected by mineral oil. Please pay attention to the impact on your product.

    Recommended news
    无码人妻一区二区三区波多野,丰满人妻少妇久久久久影院,99国产欧美久久久精品蜜菜外国,亚洲Aⅴ无码一级毛片色戒,日韩精品欧美成人高清一区二区,亚洲乱码一区二区AV高潮,亚洲精品尤物在线观看,亚洲成年网站,黑人操肥婆,五月桃花网伊人网,性色av蜜臀av高清久久,一级做a爰片久久毛片无码91,亚洲av东京热无码