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803, No. 46, 423rd Lane, Xincun Road, Putuo District, Shanghai, China (Mainland)
LPG gas emergency shut(off) valve 2'' 3'', US $ 100 - 300 / Piece, Shanghai, China, cowell, QDQ42F-25C.Source from Shanghai Cowell Machinery Co., Ltd. on Waimaotong.com.