- Ningbo Jintian Copper Tube
- Inner-grooved tube, Level Wound Coil, Pancake coil.
- Address:No.1 Chengxi west road, Cicheng, Ningbo, China Ningbo Zhejiang 315034 China
- Qingdao Hongtai Metal Co, Ltd. ,
- STRAIGHT LENGTHS, PANCAKE COIL , LEVEL WOUND COILS, PRELAGGED COPPER TUBE, SPECIAL TUBES.
- Address:tonghe road,pingdu,Qingdao City
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