what is a double needle used for

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  • 1. Durability One of the primary advantages of heavy-duty machines is their longevity. Built to withstand rigorous use, they are ideal for those who sew frequently and require a reliable machine that can handle a variety of projects without faltering.


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  • Macromolecular oxidation was detected in proteins by the colorimetric measurement of Advanced Oxidation Protein Products (AOPP) and in lipids by the colorimetric quantification of malondialdehyde (MDA). Standard curves were run with chloramine-T and 1,1,3,3 tetraethoxypropane (TEP) for AOPP and MDA methods, respectively [29][30][31]. Values were normalized to initial protein content in samples, measured with Bradford reagent [32]. The standard deviation of at least six measures was calculated and p-value < 0.05 were considered significant.

  • Rutile Titanium Dioxide R6618

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  • Lithopone 30% applied in masterbatch has maximum purity, good opacity and reasonable light fastness.  

  • Lithopone

  • lithopone supplier 30% has a lower coverage power than titanium dioxide. For this reason, lithopone supplier 30% can only partially substitute titanium dioxide, between 5 and 40%. 

  • Lithopone B301, Lithopone B311 powder is also widely applied in paints and enamels

  • Titanium dioxide is primarily known for its superior light scattering ability, which imparts a bright and vivid color to paints. In interior wall paints, this quality ensures that rooms appear more spacious and well-lit. It also contributes to the opacity of the paint, enabling it to cover surfaces evenly with fewer coats, thereby reducing material consumption and overall costs for manufacturers.
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