Before delivery, TYT black steel tube has to go through final random inspections. This aims to ensure that it is consistent and compliant with different countries' certifications such as CE, EU, CCC, and BEAB. Water- soluble packaging bags are light which reduce the transportation cost
Before delivery to the factory, TYT black steel tube must be strictly tested for measurement, color, cracks, thickness, integrity, porosity, and polish degree. Water- soluble packaging machine is highly automatic and intelligent with touch screen operation
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The design of TYT black steel tube shows advancement and professionalism. Its design has taken mechanical functions, efficiency, materials, and energy factors into account. The PVA water soluble film can be widely applied like pesticide packing, medical laundry bags and so on
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TYT black steel tube goes through numerous lab tests before mass production, such as dimensional stability at elevated temperature, bridge deformation and lens retention, lens size, thickness and curvature, etc. For now, Polyva has applied for 9 invention patents including 5 utility patents
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TYT black steel tube is produced based on high safety standards. Its electric parts, including electrical resistor, rheostat, mutual inductor, and disconnector all have passed relevant safety and electric tests. Integrated continuously cutting design is very stable and effective
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The metal ingredients of TYT black steel tube are under strict control. Lead, mercury, and cadmium in the battery cells are tested to rigorously to meet the mandatory standards put forward by the State Environmental Protection Administration. The performance of our water-soluble PVA film for laundry detergent products has reached internationally advanced level
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The quality of this product is conducted by the QC team ensure its flawlessness and long service life. The adopted materials are all harmless which do no harm to human body