adding read more link for custom post type

You can do this using,

<div class="container" style="margin-top: 20px;">
      <h1>Our Products</h1>
        <?php
         $args=array('post_type' => 'products');
         $query= new WP_Query($args);                               
         while ($query-> have_posts() ) : $query->the_post()?>
         <div class="col-lg-2 col-md-2 col-sm-4 col-xs-12">
             <!-- Add permalink as below -->
             <a href="https://wordpress.stackexchange.com/questions/206132/<?php the_permalink(); ?>"><h1><?php echo the_title();?></h1></a>
             <?php the_post_thumbnail( 'full', array( 'class' => 'innerimages') );?>
         </div>

     <?php                                
        endwhile;
     ?>
   </div> 

And then for details you have to create 'single-products.php' file and in that access your post details like,

<div>
    <?php the_post(); ?>
    <h1><?php the_title(); ?></h1>
    <div><?php the_content(); ?></div>

    .......
</div>