A combined acid cleaning technique of alkaline and acid cleaning with oxidizability was developed in the proress of trial-produrtion of armour-piercing shell body.
介绍穿甲弹体氧化性碱洗与氧化性酸洗相结合的酸洗新
。
A combined acid cleaning technique of alkaline and acid cleaning with oxidizability was developed in the proress of trial-produrtion of armour-piercing shell body.
介绍穿甲弹体氧化性碱洗与氧化性酸洗相结合的酸洗新。
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