Professional supply Ammonium Meta Tungstate  

An export license is an export permit issued by the relevant authorities in international trade according to the laws and regulations of a country on the control of export commodities. Export license system is a measure to control the export of goods.The export control of ammonium metamatunate is the customs supervision condition, coded as 4xy. 4 (export license) : refers to the export license issued by the quota license bureau of the ministry of commerce or its authorized authority;X :(export license (processing trade));Y :(export license (small border trade)). SPECIFICATIONS: Impurity Content Grade AMT-1 Grade AMT-1 Impurity Content %MAX Ai 0.001 Mo 0.003 As 0.001 Ni…