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Polycrystalline square rod

Polycrystalline square rod is a polycrystalline silicon rod with a flat cross-section and a certain geometric size on the side surface, which is prepared by efficient polycrystalline silicon ingot cutting square grinding chamfering processing technology and process control.

Serial Number

Project

Specifications

Test Method 

Dimension

1

Side length(unit:mm)

156.75*156.75

Digital vernier caliper

158.75*158.75

Customized

2

Beve(unit:mm)(bevel)

0.5~2.0

-

3

End face flatness(unit:mm)

≤1.0

Square/Feeler gage

4

Verticality

90o±0.25°

Protractors

5

Average length   of ingot(mm)

≥250

Ruler

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