Mtengo wamsika wamalowo udakwera pang'ono, ndipo billet ya Tangshan idatsogola kukwera kuyambira kumapeto kwa sabata.Pakati pawo, chikhalidwe cha malonda mumsika wazitsulo womanga wakula kwambiri, ndipo kufunikira kotsiriza ndi kulingalira kwawonjezeka.Mtengo ku Beijing ndi Tianjin ndi wotsika kwambiri, ndipo zogula zakunja ndizokwera kwambiri.Kuchuluka kwa malonda ku East China kwakula kwambiri poyerekeza ndi sabata yatha.Kumpoto kwa China ndi Kum'mawa kwa China zazitsulo zachitsulo zinachita bwino, pamene madera ena anali ochepa.
(Ngati mukufuna kudziwa zambiri zamakampani pa Steel Purlin, mutha kulumikizana nafe nthawi iliyonse)
Masiku ano, mtengo wonse wa msika wa zida zomangira umasintha kwambiri, ndipo kusakhazikika konse m'tsogolo kumakhala kolimba.Pakalipano, mbali yofunikira ya msika imatulutsidwa pang'onopang'ono, amalonda makamaka amatumiza, ndipo kusintha kwa nthawi yochepa kumakhala kochepa.Ikuyembekezeka kuthamanga modzidzimutsa mawa.
(Kuti mudziwe zambiri za momwe zitsulo zinazake zimakhudzidwira, monga Galvanized Purlins, mungakhale omasuka kutilankhulana)
Mitengo yamasiku ano yakunyumba idakhala yokhazikika komanso yophatikizidwa, ndipo malondawo anali ovomerezeka.Mothandizidwa ndi kukwera kwa coke kumapeto kwa zinthu zopangira, mtengo wamalowo unasiya kutsika ndikukhazikika.Billet idakweranso ndi 20 mpaka 4,550 yuan kumapeto kwa sabata.Ikuyenda pang'onopang'ono lero.Mtengo wa billet zitsulo watsekedwa pa 4,500 yuan chikondwerero chisanachitike.Mtengo wamakono uli pafupi ndi mtengo wosungirako nyengo yozizira isanayambe, kotero kuti chuma chamsika chimakhala champhamvu kwambiri.Kufunitsitsa kwamitengo ndikwamphamvu, zovuta zadzidzidzi zakunja zasungidwa, ndipo msika wasintha pang'onopang'ono kukhala wokhazikika.Posachedwapa, m'pofunika kupitirizabe kumvetsera kusintha kwa kagayidwe ndi zofuna ndi kukhazikitsa ndondomeko zokonzekera ndondomeko.M'kanthawi kochepa, kusinthasintha kudzakhala kuphatikiza kwakukulu.
(Ngati mukufuna kupeza mtengo wazitsulo zinazake, monga Galvanized C Purlins, mukhoza kulankhula nafe kuti mutenge nthawi iliyonse)