도금 첨가제 원료공급
광택제 첨가제 원료 수입판매 도소매
N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamin Quadrol L is used to neutralize acidic compounds, especially in the detergents and cleaners industry and the chemical and allied industries
무전해도금 · 무전해도금,전처리 · · · 참조 0회