... polish/mechanical polish.5.End:Plain end,beveled end(more than 2inch),with cap.6.Usage:Petroleum,chemical,gas,metallurgy,shipbuilding ... vessel or container or as per customers requirement.2).Length less than 6m can use 20#container,length from 6m to 12m ... can use 40#container,if big quantity and length more than 12m,it's better to use bulk.8.Company aim ...