Woocommerce shop shop details page customizations using hook:

functions.php

<?php
/* woocommerce customization*/
 add_filter( 'woocommerce_show_page_title' , 'woo_hide_page_title' );
 function woo_hide_page_title() {
     return false;  
 }
remove_action( 'woocommerce_before_shop_loop', 'woocommerce_result_count', 20 );
//remove the sale flush
remove_action('woocommerce_before_shop_loop_item_title','woocommerce_show_product_loop_sale_flash',10);
//add the custom icon div after thumbnail
// add_action('woocommerce_before_shop_loop_item_title','icon_view_link',10);
// function icon_view_link(){
// 	echo '<span class="icon-view">
//             <strong><i class="fa fa-link"></i></strong>
//          </span>';

// }
//add cuatom class to the product link open
remove_action( 'woocommerce_before_shop_loop_item', 'woocommerce_template_loop_product_link_open', 10 );
add_action( 'woocommerce_before_shop_loop_item', 'mycode_template_loop_product_link_open', 10 );
function mycode_template_loop_product_link_open() {
	echo '<a href="' . get_the_permalink() . '" rel="nofollow" class="woocommerce-LoopProduct-link woocommerce-loop-product__link media-link">';
}
//close the product link
add_action( 'woocommerce_before_shop_loop_item_title', 'mycode_template_loop_product_link_close', 10 );
function mycode_template_loop_product_link_close() {
	echo '</a>';
}
//add custom produact title
remove_action('woocommerce_shop_loop_item_title','woocommerce_template_loop_product_title',10);
add_action('woocommerce_shop_loop_item_title','mycustom_product_title',10);
function mycustom_product_title() {
    echo'<h4 class="caption-title">'.get_the_title().'</h4>';
}
//customize the add to cart button
// remove_action('woocommerce_after_shop_loop_item','woocommerce_template_loop_add_to_cart',10);
add_action('woocommerce_after_shop_loop_item','add_to_cart_wraper_open',10);
function add_to_cart_wraper_open(){
    echo '<div class="buttons">';
}
//for additional class entry pls go the the woocommer>loop>add-to-cart.php
// add_action('woocommerce_after_shop_loop_item','woocommerce_template_loop_add_to_cart',10);
add_action('woocommerce_after_shop_loop_item','add_to_cart_wraper_close',11);
function add_to_cart_wraper_close(){
    echo '</div>';
}
//@hook to show the related product
add_action( 'woocommerce_after_single_product_summary', 'woocommerce_output_related_products', 20 );
//@hook for product description heading
add_filter( 'woocommerce_product_description_heading', 'isa_product_description_heading' );
function isa_product_description_heading() {
    return 'Product Specification';
}
//@hook detail page remove sale flush

remove_action('woocommerce_before_single_product_summary','woocommerce_show_product_sale_flash',10);
//remove short description
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_excerpt', 20 );
//print hr
add_action('woocommerce_product_meta_start','print_hr',40);
function print_hr(){
	echo '<hr />';
}
add_action('woocommerce_product_meta_end','print_hr',40);

//add short description
add_action('woocommerce_product_meta_start','woocommerce_template_single_excerpt',40);
//remove data tabs from the bottom
// remove_action( 'woocommerce_after_single_product_summary', 'woocommerce_output_product_data_tabs', 10 );
// add data tabs just below the add to cart
// add_action( 'woocommerce_product_meta_end', 'woocommerce_output_product_data_tabs', 40 );
add_action('woocommerce_single_product_summary','print_hr',50);