技术要求1.压扁卷弯两边对称2.表面光洁、美观3.表面氧化处理（黑）4

技术要求
1.压扁卷弯两边对称
2.表面光洁、美观
3.表面氧化处理（黑）
4、调质处理,螺纹达到10.9级要求.

ผลลัพธ์ (อังกฤษ) 1:

Technical requirements1. flatten roll bending symmetrical on both sides2. smooth surface, beautiful3. oxidation on the surface (black)4, quenching and tempering, screw grade 10.9 requirements.

ผลลัพธ์ (อังกฤษ) 2:

Technical Requirements
1. bilaterally symmetrical curved flattened volume
2. smooth surface appearance
3. Surface oxidation treatment (black)
4, quenching, thread reach 10.9 requirements.

ผลลัพธ์ (อังกฤษ) 3:

Technical requirements for
1. compressed bending symmetrical on both sides of
2. surface smooth, beautiful oxidation of
3. surface treatment (black)
4, quenching and tempering, thread reach 10.9 level.