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Workshop"LongEvity" products employ advanced technologies, import America's equipments, together with strict test and scientific management. All the products are produced in the non-dust, non-bacteria, full close, multi-purification workshops with constant temperature.
Test RoomLongEvity ink's producing process is tested with very serious methods. All the variables must be checked; the surface tension, the stability of color solvent, viscidity, electricity are tested. Elaborate and strict testing process ensures the quality of BOTO products.
Packing WorkshopAll the LongEvity ink is put in the container in the almost no-dust situation to ensure the products' quality.
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