Olu hlobo lokudutyulwa komatshini wokuqhushumba lusetyenziselwa ukucoca i-H-beam. I-H-beam ecociweyo ngokuqhushumba kweembumbulu iya kusetyenziselwa ukuveliswa kweefreyimu zemoto. Emva kokudubula kokudubula, intsimbi iya kususa i-rust phezu komhlaba kwaye inyuse umgangatho Uxinzelelo, ukomelela okwandisiweyo, ukunyuka kwe-friction surface, ukunamathela lula kwipeyinti.
Ukuba ufuna umatshini wokudubula odubulayo wokucoca intsimbi yecandelo, nceda uqhagamshelane neQingdao Puhua Heavy Industry Machinery Co., Ltd., kwaye siya kuyila iskimu esifanelekileyo somatshini wokuqhumisa umatshini ngokweemfuno zakho.