Stainless steel elbow application handwheel, lever or other tools do not help to prevent damage to the valve member. Handwheel clockwise to closed, otherwise open. Sub-ah to be fair use, ensure accurate use of methods and means. 6 Long-term storage of stainless steel elbow, should be regularly checked often exposed machined surfaces should be kept clean and remove dirt, neatly stored in ventilated, dry place indoors is prohibited stacking or open storage. Stainless steel elbow often remain dry and ventilate the cage clean and tidy, in accordance with the accurate way to store storage. Contact: Liu Mobile: 13931700327 Tel :0317 -6017386 Fax :0317-5138086 QQ number -1286123911 Website: http://www.hbdingrunwt.com