Tianjin San Jin Plastic Co., Ltd. is a joint venture between Tianjin Bohai Chemical Industry (Group) Co., Ltd. and Taiwan Shan Lhi Enterprise Co., Ltd. Our company introduced full-automation production equipment and advanced technology, and possesses a series of large-size full-automation injection machines for manufacturing plastic butterfly valve, ball valve, disphragm valve. Water tap, compression coupling and soon. Our products have wide range of specifications consummate skill and high quality. Our UPVC series of valve is nonpoisonous adopting a unique formulation of raw material, and they have a good property of acidresisting and a alkali-resisting, corrosion-resisting, flush-resisting, non-caking and higher machanical strength.