GESTER Instruments mask tester has to be tested for quality before its shipping. It must be dipped in the acetic acid for hours to inspect the dissolving-out quantity of lead and cadmium.
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The raw materials of GESTER Instruments mask flame resistance tester are carefully selected by the quality control team as harmless and non-toxic. The raw materials have been tested to adhere to the porcelain industry. Statistics can show that the raw materials do not produce a chemical reaction with other chemical substances.
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The glaze workmanship of GESTER Instruments mask tester includes overglaze decoration, in glaze decoration, and under-glaze decoration. Especially the under-glaze decoration, which directly determines the pattern quality, is processed by experienced workers.
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The key process to produce GESTER Instruments mask flame resistance tester are hand grinding, washing, high-pressure grouting, and drying. All these procedures are done by skillful workers who have many years of experience in porcelain making.
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GESTER Instruments mask flame resistance tester is made of clay and other inorganic nonmetallic minerals which are guaranteed to be free of lead, cadmium, and other heavy metal elements.
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The product is tested on various quality parameters by our experienced quality controller team.