平尺：用于直线度和平面度测量，我厂生产批发各种规格的大理石量具，平台，定做大理石构件。人工精磨，00级，货期短，送货，质保三年。以下是平尺规格：
TYPE（mm）
flantness
straightness of measuring surface
Paralleli between opposite measuring surface
等级Precision grade
00 0 00 0 00 0
400x60x25 1.6 2.6 2.4 3.9 8.0 1.3
630x100x35 2.1 3.5 3.2 5.3 10.5 18
1000x160x50 3.0 5.0 4.5 7.5 15 25
1600x25x80 4.4 7.4 6.6 11.1 22 37
2000x300x100 5.4 10.0 8.1 13.5 27 45
TYPE（mm）
flantness
straightness of measuring surface
Paralleli between opposite measuring surface
等级Precision grade
00 0 00 0 00 0
400x60x25 1.6 2.6 2.4 3.9 8.0 1.3
630x100x35 2.1 3.5 3.2 5.3 10.5 18
1000x160x50 3.0 5.0 4.5 7.5 15 25
1600x25x80 4.4 7.4 6.6 11.1 22 37
2000x300x100 5.4 10.0 8.1 13.5 27 45
