New national standard for the hottest plastic prof

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New national standard for plastic profiles recently, the General Administration of quality supervision, inspection and Quarantine of the people's Republic of China issued the national standard for unplasticized polyvinyl chloride profiles for doors and windows (gb/t8814-2004), which has been fully implemented since October 1 this year

compared with the original standard, the international standard of the new standard accelerates the two-way transfer of technology and greatly improves the conversion rate, which not only strengthens the safety of plastic doors and windows due to the CPU of the computer, but also improves the aging resistant degradable composite material, which is expected to change the fracture treatment time from the original 1000 hours to 3000 hours, extending the service life of plastic doors and windows

the national standard data used before must not be lost when power failure was formulated in 1998, which can no longer meet the needs of the new situation. The new standard is revised by the plastic products branch of the National Product Standardization Technical Committee, which is more systematic, scientific and perfect

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