1,5-Naphthalene Diisocyanate(NDI) CAS 3173-72-6 dị ka Polyurethane Material
Anyị Shanghai Theorem Chemicals agbakwasiri ike ọhụrụ chemical ihe, Polyurethane raw material na pụrụ iche isocyanates, N'ime afọ, na nkà ihe ọmụma nke "Quality Oriented, Technology eduzi", th ...