Update Specification

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

Remove Grade

Showing 1-2 of 2 items.
#QualityStock Limit 
170-72%0
200

Remove Components

Showing 1-4 of 4 items.
#Name
1Mn
2(not set)
3P
4Al