For years, welding was seen as the only way to ensure the integrity of joints in demanding load-bearing or high-vibration structures. So, companies manufacturing heavy-duty equipment or fabricating large, metal structures continued to employ the universally accepted process of welding joints together.
National Gas receives funding to develop Gravitricity underground hydrogen storage system
One single rock salt mine - Winsford - has 23 <i>MILLION </i>cubic metres of void and even allowing for 10% of that void set aside for hazardous waste...