Hajoale, Hunan Great Steel Pipe Co., Ltd e na le lisebelisoa tse 3 tsa mohala oa tlhahiso ea lipeipi tsa tšepe tse chesang tse koetsoeng le lihlopha tse 2 tsa mohala oa tlhahiso ea liphaephe tse chesang tse atolositsoeng tse nang le matla a selemo a tlhahiso ea lithane tse 200,000, boholo ba boholo bo tloha ho 73mm ho isa ho 630 limilimithara.Li-labs tsa eona tsa 'mele le tsa lik'hemik'hale li etsa liteko tse fapaneng tsa' mele le tsa lik'hemik'hale le liteko tsa liphaephe tsa tšepe, 'me li na le lisebelisoa tsa eddy tsa hona joale tse nang le liphoso, ho sibolla phoso ea ho lutla le li-ultrasonic crack detectors joalo-joalo. e nang le mefuta e mengata ea litekanyetso tsa tlhahlobo, e khonang ho fihlela litlhoko tse fapaneng tsa tlhahlobo le tlhahlobo ea lipeipi tsa tšepe.