You might find this link useful for creating custom fields in product page:
http://www.remicorson.com/mastering-woocommerce-products-custom-fields/
http://www.remicorson.com/woocommerce-custom-fields-for-variations/
You might find this link useful for creating custom fields in product page:
http://www.remicorson.com/mastering-woocommerce-products-custom-fields/
http://www.remicorson.com/woocommerce-custom-fields-for-variations/