• so the owners when choosing designer, must look at the previous design cases, and asked him to talk a lot, to see what he know about indoor decoration design, generally after one or two hours of chat, you can know whether the designer professional, can draw a good decoration design.The best decoration design is mostly made by the owner himself,…[Read more]

  • color quantitative;The third kind is the meteorological chromatography, the formaldehyde in air under acid condition, the coated with 4 – dinitrobenzene hydrazine 6201 supporter, generate stable formaldehyde hydrazone, with carbon disulfide after elution, well OV – chromatographic column separation, hydrogen flame ionization detector is used to…[Read more]