螺旋状粗螺纹符合锥螺纹连接工法

1.特点 2
2.适用范围 2
3.连接原理 2
4.工艺流程及操作要点 3
5.材料设备 4
6.质量检查 5
7.劳动组织 6
8.安全措施 6
9.效益分析 6
10.工程实例 7

Coarse thread spiral construction methods meet the taper thread connection

1. Features 2
2. Scope 2
3. Connection Principle 2
4. Technology and operating points of 3
5. Materials and equipment 4
6. Quality Inspection 5
7. Labour Organization 6
8. Safety 6
9. Benefit Analysis 6
10. Projects 7