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2024
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01
2022
● October 2022, the Chinese national standards "Heat shrinkable chlorinated polyolefin Pipe" and "Heat shrinkable spacer pipe", which Hongshang participated in as the main drafting unit, were released. ● July 2022, the Chinese national standard "Polyolefin hose for Heat shrink medium pressure Joint" and "Extruded silicone tube", which Hongshang participated in as the main drafting unit, were released.
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lOctober 2022, the Chinese national standards "Heat shrinkable chlorinated polyolefin Pipe" and "Heat shrinkable spacer pipe", which Hongshang participated in as the main drafting unit, were released.
lJuly 2022, the Chinese national standard "Polyolefin hose for Heat shrink medium pressure Joint" and "Extruded silicone tube", which Hongshang participated in as the main drafting unit, were released.
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