“锌渣”用英语怎么说？

可延长锌锅使用寿命, 降低锌渣生成量,经济效益显著.Then the life of galvanized pot is increased, the slag reduced and economic benefit obtained.热镀锌行业每年产生5万余吨的锌渣.Over fifty thousand tons zinc slag is produced in hot zinc plated industry every yea...