1. natural plants: rosin thermopolymer, rosin soap, calcium lignosulfonate, triterpene saponin, humic acid sulfonate;
2. alkyl and alkyl aromatic hydrocarbon sulfonates: dodecyl sulfonate, alkyl benzene sulfonate, alkyl phenol polyoxyethylene ether, etc.;
3. fatty alcohol sulfonate: fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene sodium ethylene sulfonate, sodium fatty alcohol sulfate, etc.
4. others: protein salts, petroleum sulfonates
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