We have a trusted network of very reputable suppliers that we’ve been using for many years.
We only use the best quality materials because ultimately it would not reflect well on us if we didn’t. We don’t want to be called back to your place to fix problems caused by product failures any more than you want to call us back.
We’d much prefer you be happy with your products for many years and if we’re lucky, refer us on to your friends in future. The best way for us to do this, is not to skimp on the quality of the parts.