China National Standards

China possium GB Standards List

  •  China "possium" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 22409-2008 Photography - Processing chemicals - Specifications for possium sulfite solution，650g/L
    摄影 加工用化学品 亚硫酸钾溶液(650g/L)    		 China National Standards
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