41 Providing newsletters online in the fields of news, science, engineering, technology, manufacturing, components, instruments, equipment, materials, management, and information technology, namely, acoustics and audio technology, alternative power, building and construction, chemical engineering, coatings and surface engineering, data acquisition, design and analysis software, display technologies, drives, electrical components, electronic components, electronic product design, electronic test equipment, engineering management, engineering student news, environmental technology, fastening, joining and assembly, glass and ceramics, HVAC, hydraulics, industrial automation, industrial computing, industrial MRO (Maintenance, Repair and Operations), industrial processing equipment, international news, lab equipment, light and laser, machine tools and metal working, material handling, mechanical components, medical equipment design, MEMS technology, metal working, metals and alloys, motion control components, motors, nano technology, networking and communications, packaging and labeling, plant engineering, plastics and resins, plastics fabrication, pneumatics, power generation, power transmission, pump technology, quality control, robotics systems, scientific instruments, semiconductor fabrication, sensors and switches, shock, vibration and noise, supply chain management, test and measurement, textile manufacturing and technology, valve technology, wire and cable technology, and wireless technology
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