Optical Tools For Industry Ltd

Description

window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-762092-58'); gtag('set', {'user_id': 'USER_ID'}); // Set the user ID using signed-in user_id. Originally formed to fulfil the requirements in the optical industry for sp