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抽查范围:山西省生产经销单位的67个批次(其中省内企业生产的28个批次,省外企业生产的39批次)的PVC型材。抽查结果:全部合格。我国PVC型材发展史我国PVC型材产品经历了导入期和高速发展期,从时间上看,可以分别定义为二十世纪80年代到90年代中期和1995年~2002年左右。2003年以后,PVC型材行业进入了转型期。在产品的导入期:生产商普遍追求低造价,简化了门窗型材断面,配方中大量填充碳酸钙,导致产品性能很低,
Spot checks: Shanxi Province, production and distribution unit of 67 batches (which the province’s production of 28 batches of enterprises outside the province produced 39 batches) PVC profiles. Spot check results: all qualified. The development history of China’s PVC profiles China’s PVC profiles experienced a period of import and rapid development period, from the time point of view, can be defined as the 1980s to the mid-1990s and 1995 to 2002 or so. After 2003, PVC profile industry has entered a period of transition. In the product introduction period: the general pursuit of low cost manufacturers, to simplify the profile of doors and windows, the formula filled with large amounts of calcium carbonate, resulting in low performance products,