WEINHEIM, Germany—A 2024 report by Unesco states that 2.2 billion people worldwide live without clean drinking water, and 3.5 billion lack access to safe water sanitation. In the face of modern ...
For more than 60 years, engineers specifying seals and customers using them have accepted the arbitrary rule that the maximum amount O-rings will swell in most applications is a 25% change in volume.
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