Cov kav hluav taws

Nyob zoo Sir

Kuv yog Lee Wenli los ntawm Handan Zhengda Steel Pipe Group Co. Ltd.

Peb lub tuam txhab yog 2nd loj tshaj plaws ERW HDG yeeb nkab zeb hauv Suav teb.

Peb cov khoom tseem ceeb yog:

1. ERW HDG kav dej
   

2. ERW Dub Square hollow seem

3. ERW Dub Rectangular hollow seem

4. ERW HDG Scaffolding kav

5. SSAW Pipes API 5L

Cim npe nrov: hluav taws kub kav, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, yuav, tuam txhab, exporter, muag, hom, zoo tshaj plaws, zoo, ua nyob rau hauv Suav teb