For example, these will include a gasket: These will not include a gasket: Also see What quantity do I need. ??EDF Energy readies more Hinkley Point C suppliers pending final investment decisionEDF Energy announced two further preferred bidder contracts worth over ??100m as it prepares to make a final investment decision for the Hinkley Point C nuclear power station. ??We're committed to continually improving all aspects of our monitors with the best technology currently available, said Havis Kwon, President.