| 4. | By high - precision cold drawing and cold rolling technology the works can produce high precision seamless steel tubes , which are widely used in such industries as metallurgy , petroleum , hydroelectric , civil works , shipbuilding , automobile , spinning and so on
商品描述：公司采用高精度冷拔、冷轧加工工艺技术，生产的高精度无缝钢管，已被冶金、石油、水电、建筑、船舶、车辆、轻纺等行业采用。 |
