Update Specification

 
field($model, 'component[]')->dropdownList($array, ['prompt' => 'Select Component'])->label("") ?>

Remove Grade

Showing 1-3 of 3 items.
#QualityStock Limit 
118-20%0
21-3%0
3NA0

Remove Components

Showing 1-3 of 3 items.
#Name
1Cu
2Sulphide
3SiO2