Accurate positioning of the gasket 18 may be readily facilitated in this manner by placing the gasket 18 onto the engagement surface 20 of the press block, after which the press block and {TAIL ~ gasket} are then engaged with the substrate 15 with the press block surface 59 located against {HEAD ~ the upright surface} 58 
Accurate positioning of the gasket 18 may be readily facilitated in this manner by placing the gasket 18 onto the engagement surface 20 of the press block , after which the press block and { TAIL ~ gasket } are then engaged with the substrate 15 with the press block surface 59 located against { HEAD ~ the upright surface } 58
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