[China Glass Network] 1. Remove the contaminants on the measuring device by mechanical means, such as brushing with a brush or shaking with water (if necessary, add filter paper fragments). The oil or oil may be removed with a suitable solvent, then poured into a low foam wash and shaken vigorously, rinsed with tap water until the wash is completely rinsed, and then washed three times with water. 2. If the inner wall is still not clean enough after the first method, it can be washed with the following washing liquid: 1. A mixture of saturated falling liquid of potassium dichromate and concentrated sulfuric acid. Note: The chromic acid washing solution is toxic. If you can use other methods to clean the measuring device, do not use chromic acid washing solution. Wear protective mask and gloves when preparing potassium dichromate sulfuric acid mixture. 2. An equal amount of a mixed solution of 30 g/L potassium permanganate (KMnO) solution and 1 mol/L sodium hydroxide (NaOH). This mixture will have residual manganese dioxide produced by dilute hydrochloric acid or Oxalic acid removal]. If necessary, you can soak a few decimals with the above washing solution. Then rinse with distilled water several times and check if it is cleaned. If it has not been washed, it can be washed repeatedly. 3. If the container after cleaning is not used immediately, it should be stored in distilled water. Although the glass used to make the gauge has a softening point of about 500 ° C, it is recommended that the glass gauge drying temperature should not exceed 150 C, because the heating temperature may cause a change in volume although it is lower than the softening point. Roller Blind Curtain Shade Gauze Zebra Using double-layer fabric, adjustable light, do not take up space. Not only the advantages of cloth and yarn are combined, but also the function of a hundred leaf curtain, a roll curtain, and a Roman curtain. European style, double-layer transparent curtain design -- the middle transparent curtain has a louver curtain open dimming function, adjust the angle of the curtain, can make different light permeability curtains overlap, with a soft texture. Locally adjustable light. Zebra Shades Window Blinds,Zebra Window Blinds,Zebra Shade Blinds,Roller Blind Curtain Shade Gauze Zebra SHAOXING JEVA IMP.&EXP. CO., LTD. , https://www.xhcurtain.com