Sino-South Kore Henan Changmao Yuanyi Valve Col, Ltd as being one of world rubber joint and valve industry leading manufacturers , we have rich expertise within industry and professionals in all standards for flexibel rubber joints , valve, expansion joint , Expansion bellows , isolating rubber pad etc . Due to complete product line and msot complete product line , â€œ Changmaoâ€ as being well known brand adopted in major projects including key Power plant , Hight building , Chemical plant , Water Heating system , Dirt filtration system , we are also authorised by China Petroleum and Chemical Corporation .

High pressure joint , valve as core product line with us , we adopt Modern effective management , Well repliable quality , Complete aftersale service lead us large market share in the global market , the reason why our well established clients dispersed around Spain , Italy , ROK, USA, UAE , Japan , Slovenia more than 40 countries . Long term mutual developping corporation is our seeking for .

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