行业知识
顾客至上·诚实守信·激情创造·科技突破·力求完美·追求卓越——宁夏黄河管业
DN |
n—M |
1000 |
4一M14 |
1200 |
4一M14 |
1400 |
4一M14 |
1600 |
8一M14 |
1800 |
8一M14 |
2000 |
8一M14 |
2200 |
8一M14 |
2400 |
8一M16 |
2600 |
12一M16 |
2800 |
12一M16 |
3000 |
12一M16 |
3500 |
12一M16 |
3800 |
12一M16 |
4000 |
12一M16 |