... of cloth and sewing threads. included is also needle cold air blowing unit. and nonwoven guiding unit and so on. ... parameters testing of our fabric, such as weight, thickness, air permeability, tensile strength, etc.PROFESSIONAL ENGINEERSTo ensure our products ... : Chemical index test, strength test, abrasion test, fiber analysis, air permeability, water & oil repellent test, fine dust test, single ...