... excellent service. Sodium Carbonate (Soda Ash Light)Light Sodium Carbonate StandardGradeGB210-92( type)First gradePremium ... petrochemicals, metallurgy, papermaking, soap, textile, printing, dyeing, food, medicine, film and light industry. Packing: 50kg plastic ... petrochemicals, metallurgy, papermaking, soap, textile, printing, dyeing, food, medicine, film and light industry.Packing: 50kgplastic woven ...