Tafuta ' ' kupata maudhui yanayofaa , ambayo inachukua sekunde }
Neno halijajumuishwa kwenye tovuti hii 'Sanchez16 pipe ya viwanja', unakaribishwa kuunda :)
Muhtasari:Square tubes for petroleum cracking (gb-) are furnace tubes, heat exchangers and pipeline square tubes suitable for petr[Soma maandishi yote]