The structure is compact, zoom distance is short and zoom track is smoothness, The image plane is tranquilization.
结构紧凑，变焦行程短， 变焦轨迹平滑，像面稳定。
The masterbatch of production has good of spread around, high of chroma, small of chromatism, quality tranquilization and so on characteristics, has famous of craft brother.
所生产的母料具有分散好，浓度高，色差小，质量稳定等特点，在同行中享有盛誉。
The masterbatch of production has good of spread around, high of chroma, small of chromatism, quality tranquilization and so on characteristics, has famous of craft brother.
所生产的母料具有分散好，浓度高，色差小，质量稳定等特点，在同行中享有盛誉。
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