How to concatenate values?

Hi i have an issue while identifying a product, i have three tables Products, Brands, and Models. Im trying to make my $product->name to be the value con concatenate the $product->brand + $product->name. Is that possible?

ProductController:

public function store(Request $request){

    $product = new Product();
   
    
      $product->ptype_id = $request->ptype_id;
      $product->model_id = $request->model_id;
      $product->brand_id = $request->brand_id;
      $product->name = "    "
    
       $product->save();
       Session::flash('success');
       return redirect()->route('products.view');
   }