This method is a combination of pickling and blast cleaning.
这一方法是酸浸除锈法和喷砂除锈法的组合。
It is important to maintain a proper size of abrasive for air blast cleaning.
保持空气喷砂清理用磨料的正确尺寸很重要。
Care shall be taken to avoid blast cleaning away identification markings on the pipe.
应当小心以避免喷砂时除掉管子上的识别标记。
Care shall be taken to avoid blast cleaning away identification markings on the pipe.
应当小心以避免喷砂时除掉管子上的识别标记。
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