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深圳惠州東莞直供活性炭 用于電廠石化污水處理等量大優惠
活性炭是一種黑色多孔的固體炭質，由煤通過粉碎、成型或用均勻的煤粒經炭化、活化生產。主要成分為碳，并含少量氧、氫、硫、氮、 		2025-08-04
深圳惠州東莞直供甲酸 用于染料橡膠金屬表面處理劑等量大優惠
性質無色透明發煙液體，有強烈的刺激性氣味．屬強酸類。能以任何比例與水互溶，并形成高于兩者沸點的共沸混合物。能與許多有機溶 		2025-08-04
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