الماسة للتوكيلات الملاحية غير مصنف فبراير 20, 2019 By : التعليقلت: 0 Likes: 0 A pipe is a tubular section or hollow cylinder, usually but not necessarily circular cross-section, used mainly to convey substances which can flow liquids and gases (fluids), slurries, powders and… Read More Share