... for railroad,track e clip ,eastic clip for railway,rial spring clip,elastic clip for rail,tensile clip for rail.spring clip for railway,eastic clip for railway,tensile clip for railroad ... than 50 kg) ,if need ,then coated on tray or according to customer’s request.6.finishing anti-rust and ... anti-corrosion pre-treatment or according to customer's request7.can make as customer' ...