Pretreatment column device for pesticide residue testing

Abstract

1. Name of the product in this design: Pretreatment column device for pesticide residue detection. 2. Purpose of this design: To enhance the recognizability of the pretreatment column device for pesticide residue detection. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. The right view of Design 2 is the same as the right view of Design 1, so the right view of Design 2 is omitted; the right view of Design 3 is the same as the right view of Design 1, so the right view of Design 3 is omitted; the left view of Design 2 is the same as the left view of Design 1, so the left view of Design 2 is omitted; the left view of Design 3 is the same as the left view of Design 1, so the left view of Design 3 is omitted; the top view of Design 2 is the same as the top view of Design 1, so the top view of Design 2 is omitted; the top view of Design 3 is the same as the top view of Design 1, so the top view of Design 3 is omitted; the bottom view of Design 2 is the same as the bottom view of Design 1, so the bottom view of Design 2 is omitted; the bottom view of Design 3 is the same as the bottom view of Design 1, so the bottom view of Design 3 is omitted. 6. Design 1 is designated as the basic design.

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