升级到高级会员并解锁额外的福利. 更多详细资料
加入我们,关注您的公司成长! 成为全球1万多家金属材料公司的一分子 更多详细资料
Please contact : Whatsapp/Telegram: +8615629481823 We are here provide the best qua...
We have customers all over the world. Professional service and rich experience to rea...
Spiral steel pipe is an important steel pipe in the project construction. It is forme...
Standard API-5L, SY/T5037-2012 Grade : Q235B,Q345B,SS400, S235JR, X70 Thickness: 6...
Standard: GB3091-2015, BS1387-1985, ASTM A500 GRADE A,B,C, ASTM A795, ISO65, ASTM A53...