The paper relates the pollution and harm from the drained off waste acid from wire drawing and cooling water with harmful impurity in steel wire production.
叙述拉丝生产中排放的废酸和含有害杂质的冷却水对周围水质的污染及危害。
The paper relates the pollution and harm from the drained off waste acid from wire drawing and cooling water with harmful impurity in steel wire production.
叙述拉丝生产中排放的废酸和含有害杂质的冷却水对周围水质的污染及危害。
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