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Humus acid
model：
腐植酸
water content：
None
main ingredients：
含有大量的羟基、羧基，酚羟基、醌和羟醌衍生物
content：
None
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Zibo Dingsheng Power Material Co., LTD
Shandong
Main products：
Carbon black, activated carbon, humic acid, polyester staple fiber, Japanese lignin, lead slag reducing agent, barium sulfate, graphite, antimony trioxide, stannous sulfate, etc 
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