Tafuta ' ' kupata maudhui yanayofaa , ambayo inachukua sekunde }
Muhtasari:AkureyriMsimamizi wa chuma cha kuosha vifaa kwa kuosha, upinzani wa upinzani wa hewa uliongezeka kwa kiasi kikubwa, laki[Soma maandishi yote]
Muhtasari: high frequency preheating plus three torch argon arc welding, high frequency preheating plus plasma argon arc welding. [Soma maandishi yote]
