- RK Valve Manufacturing CO., LTD
- jis marine valve and all kind of air vent heads.,Air Vent(pipe) Head.
- Address:Li Jialing industrial park, qingdao, shandong, China
- Qingdao High Peak Hardware Co., Ltd
- marine valves, air vent(pipe) head, hatch covers fittings.
- Address:7#303 century garden ,21st Haier road Qingdao china Qingdao Shandong 266100 China