Cinder Speakers. Daniel Ballou and Dashdot are developing a system that transforms the humble cinder block into a high fidelity speaker. Concrete is a low resonance material that minimizes vibrations
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Cisco ASA: All-in-One Firewall, IPS, and VPN Adaptive Security Appliance is a practitioner’s guide to planning, deploying, and troubleshooting a comprehensive security plan with Cisco ASA.
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This 2 layer stretch film machine group is a cast stretch film machine group with high-plasticizing, easy operating, long-life, energy saving and it's modified and designed on the years' experience and we use a screw with a length-to-diameter ratio of 33:1 to make the particles more fully plasticized.