Using Aurelia without the aurelia-bridge how do you import components globally?

<template>
  <div style="margin: 50px;">
    <button id="normalbtn">Normal</button>
  </div>
</template>

import { Button } from '@syncfusion/ej2-buttons';


export class Syncfusion {
constructor(){

}
attached(){
  let button = new Button();
  button.appendTo('#normalbtn');
}
}

import '@syncfusion/ej2-buttons/styles/material.css'