shifang Changfeng Chemical Co.,Ltd., one of the members of China Flame Retardant Association, is specialized in producing phosphorus flame retardant and fine phosphate. Products of our company are mainly exported. Manufacturing technique and quality of ammonium polyphosphate with high polymerization degree and anhydrous sodium phosphate rank first in our country. Certified in ISO 9001:2000, and with authority to engage in direct import and export,
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