短語詞組短語polymeric hindered amine light stabilizer 高分子受阻胺光穩(wěn)定劑hals hindered amine light stabilizer 受阻胺光穩(wěn)定劑hindered amine light stabilizer antioxidant 受阻酚抗氧劑hindered amine light stabilizer hals 受阻胺類光穩(wěn)定劑Hindered Amine light Stabilizer HS -508 受阻胺光穩(wěn)定劑HSHindered Amine Light Stabilizer HS -962 受阻胺光穩(wěn)定劑HS 返回 hindered amine light stabilizer