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in wave soldering.this is partly because nitrogen has long been used in the hybrid ic industry for reflow soldering of ceramic mixers on their surfaces. when other companies saw the benefits of ic fabrication, they applied this principle to pcb soldering.in this welding, nitrogen also replaces the oxygen...
pleje læder pleje uanset årstid har dit læder brug for pleje for at kunne holde. absorbine tilbyder en hel række muligheder af læderpleje, der hjælper læderet til at holde længere ved at rense det indefra og ud. blandt de populære produkter fra absorbine's læderpleje sortiment finder du leather therapy...
biogas is a renewable source of methane gas, created when organic matter breaks down in an oxygen-free environment. this biological process is referred to as anaerobic digestion (ad). the main component of biogas is methane, also the key component of natural gas. what is renewable natural gas (rng)?...