Air Grill باكستان طلبات الاستيراد والتصدير باكستان شركات الأعمال

we required manual fire damper and supply and return air grill & return air grills

we need quotation for the following items, air vent including access pipe, air and vacuum valve, open-closed valve etc DN400 PN-16 (Body Test Pressure of 24 bar including gate valve for maintenance)".