在线成h人视频免费_亚洲欧洲AV一区二区三区_经典三级一区二区三区视频_亚洲色精品VR一区二区三区

Telephone

0391-7268896

WeChat

Mobile

Overhead

Alternate Text

Scope of business

The main products are flexible rubber expansion joint (shock throat), single sphere, double sphere, reducing joint,
single and double flange expansion joint series, force transfer joint series, smoke, air and coal pipeline compensator (rectangular and circular models),
rubber duck beak blowdown check valve (flange, socket and built-in), stainless steel metal hose, stainless steel compensator, rubber lining of pipeline equipment, valves and other products.