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tubes & profiles wgalweld tubes sprinkler pipes tube processing services sectors engineering automotive construction shopfitting furniture medical equipment solar and energy technology food & packaging environmental engineering locations locations business unit flat wuppermann staal nederland b.v. wuppermann...
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material , then covered by a pattern film, irradiated with ultraviolet light, and then the exposed photo-sensitive coating is developed, and underlying thin film is etched away. thick film resistors are manufactured using screen and stencil printing processes. [ ] because the time during which the sputtering...
cells in that they use the photovoltaic effect to produce a current using semiconductor materials, but instead of harvesting this current directly, pecs use the energy to electrolyze water, producing hydrogen and oxygen gas. these cells always contain two electrodes, one of which must be either a photo-anode...
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