ALLTO Pipeline Equipment Co.,Ltd: As one of the most professional expansion joint, metal bellows, dismantling joint, metal flexible hose,PTFE bellows,pump connecors,flanges,cast iron dismantling joints,SS316/SS304 flanges, and duck valve suppliers in China since1996, we warmly welcome you to wholesale bulk high quality products made in China at low price from our factory. Also, customized service is available.