... provide all kinds of specifications and models of spherical tank, Tank volume from 50 cubic meters to 10,000 cubic ... Ball piece Material: there are 16MnRWH510,WH530, SPV355N, SPV490Q, IE537-2, 07MnCrMoVR, 07MnNiMoVDR, WEL-TEN610CF, JFE-HITEN610U2(L), 15MnNbR, ... and testing equipment and instruments needed for manufacturing and installing pressure vessels. For example: 60 tons tensile testing machine, ...