- Yuhuan Tiannian Valve Co., Ltd.
- Address:Qinggang Industrial zone,Yuhuan County
- Integrity Technical Products (Ningbo) Co., Ltd.
- Address:Rm810, Prime Center A, No.19 Hualou Xiang, Ningbo 315000 China
- Yongjia Yuanheng Machine Co., Ltd.
- Address:Luofu Xi'an Industry Zone, Oubei Town.
- Shanghai Doocang Engineering Machinery Co., Ltd.
- Address:No.475,Xutang Rd., Songjiang District,Shanghai,CHINA.
- Shiyan Desizheng Industry & Trade Co., Ltd.
- Address:No. 16-2, Guangzhou Road, Auto Parts Center, Bailang
- Ningbo High-Tech Zone Tosion International Trade Co., Ltd.
- Address:
- Taian Chuanghe Import And Export Co., Ltd.
- Address:A-506, 96 Chang Cheng Road
- Tianjin Zeguang Rubber And Plastic Products Co., Ltd.
- Address:hebei road
- Zhuji City Joint Machinery Fittings Factory
- Address:Zhuji
- Qingdao Hyrotech Rubber & Plastic Products Co., Ltd.
- Address:
- Zibo Allway Machinery Co., Ltd.
- Address:East-South Menger, Mengshui County, Wenchanghu District
- Jiangsu Special Valve Co., Ltd.
- Address:funing economic development zone
- Ningbo Rudder Machinery Co., Ltd.
- Address:Dinghai District, Zhoushan City, Zhejiang Province, China
- Zaozhuang Tianyi Industry Co., Ltd.
- Address:ZAOZHUANGCITY ECONOMY DEVELOPMENT AREA[NO.10 XICHANG ROAD
- Beijing Tianhai Industry Co., Ltd.
- Address:No.9 North Tianying Road, Chaoyang District
- Yantai Pukun Hydraulic Devices Co., Ltd.
- Address:NO.B-24,Bajiao District ETDZ., Yantai
- Zhangjiagang Tubes China Co., Ltd.
- Address:A2102,Huachang Oriental Square. No.11 East Renmin Road,Zhangjiagang ,China
- Changshu Fushilai Steel Tube Co., Ltd.
- Address:No.8,Yinhuan Road,Southeast Development Zone,Changshu,Jiangsu,China
- Ningbo Jiangdong Plumbing Hardware Co., Ltd.
- Address:4C,No.8 Huaishu Xiang, Jiangbei area,Ningbo, China( Factory)
- Cixi Qianyi Pneumatic & Hydraulic Co., Ltd.
- Address:Kanxi Village, Kandun Street