Magnesium sulphate heptahydrate 4-7mm 

Main purity: 99.5%

Molecular weight: 246.47

Size: 4-7mm

Package: 25kg/pp bag , 25kg plus jumbo bag , Jumbo bag 

Port: Qingdao/ Tainjin port China

Remark: magnesium sulphate fertilizer benefits  can be maximized when it is used as water soluble fertilizer for direct sprinkler irrigation.