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- A.<3.5%
- B.3.5%-10%
- C.>10%
- D.>50%
- A.磷
- B.镍
- C.铬
- D.锰
- A.保险丝
- B.螺帽
- C.弹簧
- D.垫片
- A.<3.5%
- B.3.5%-10%
- C.>10%
- D.>50%
- A.<3.5%
- B.3.5%-10%
- C.>10%
- D.>50%
- A.0.1%-0.3%
- B.0.3%-0.5%
- C.0.5%-1.05%
- D.1.0%-3%
- A.0.1%-0.3%
- B.0.3%-0.5%
- C.0.5%-1.05%
- D.1.0%-3%
- A.0.1%-0.3%
- B.0.3%-0.5%
- C.0.5%-1.05%
- D.1.0%-3%
- A.0.001-0.002in
- B.0.0001-0.0002in
- C.0.001-0.002mm
- D.0.001-0.002um
- A.8%-10%
- B.12%-16%
- C.15%-20%
- D.20%-30%
