... resistance, resistance to most of chemicals corrosion( the diameter is the same for strong polyester 60 % , For 25 % of their weight ).3.Round ... of casing is deemed as the basis for abandonment,which visualizes secualizes security inspection for the sling.4.Application:Sea rescue, ... shipment and etc. For many years, the company in good faith for this, the first-class service, won the praise of users. ...