sodium para periodate_sodium para periodate

According to customs statistics, in the first four months of this year, the total value of my country’s imports and exports of goods trade was 9.07 trillion yuan, a year-on-year decrease of 4.9%, and the rate of decline narrowed by 1.5 percentage points from the first quarter. Among them, exports were 4.74 trillion yuan, down 6.4%; imports were 4.33 trillion yuan, down 3.2%; the trade surplus was 415.7 billion yuan, down 30.4%.