1, mankhwala zikuchokera mayeso

1.Coccortor ku kapangidwe ka mankhwala ndi makina ochitira makina osawoneka ngati 10, 15, 25, 30, 30, 45, 408. 16Mn, 15MNV zitsulo ayenera kutsatira zomwe GB1591-79.

2. Onani gb223-84 "Njira Zowunikira Mankhwala a Zitsulo ndi Aloyi" kuti mudziwe njira zowunikira.

3. kusanthula kwapatuka molingana ndi GB222-84 "kusanthula kwachitsulo kwachitsulo ndi zitsanzo ndi kutha kwapang'onopang'ono kwa mankhwala opangidwa ndi mankhwala".

2, kuyesa magwiridwe antchito

1.Malinga ndi ntchito ya zoweta zoweta chitoliro kotunga, wamba mpweya zitsulo malinga GB/T700-88 kalasi A kupanga zitsulo (koma ayenera kuonetsetsa kuti sulfure okhutira sapambana 0,050% ndi phosphorous okhutira si upambana 0,045%), katundu wake makina ayenera kukumana mtengo wotchulidwa mu tebulo GB8162-87.

2.Malinga ndi kuyesedwa kwa madzi kuthamanga kwa chitoliro chapakhomo chopanda msoko ayenera kuwonetsetsa muyeso wa mayeso a kuthamanga kwa madzi.

3. Kuwunika kwa thupi kwa chitoliro chosasunthika chotumizidwa kunja kudzachitidwa molingana ndi miyezo yoyenera yomwe ili mu mgwirizano.