certificarion:ANAB,UKAS,THE AAA CLASS, DESIGN LICENCE,etc. material: Q235B,SS304,SS306- heart exchanger month capacity:100unit I am professional,I am well. shishi HONGQI pressure vessel co.;ltd china.We just produce perfect products. Since from 2002,the HONGQI people work carefuless and hard that make the technique and aesthetic ideas together, to produce high-purity high-technology high-quality ...