... Wooden Cases or wooden pallet or as per customers requirement7.Elbow Applications range: Petroleum, chemical, power, gas, metallurgy, ... According to customer's requirement10.Elbow Quality:First grade11.Elbow Productivity:8000000T/Y12.Others for Elbow (1)Special design available ... the ISO9001 Seamless ,welded ,but-welding,forged,casting thread Socket -weld Elbow -- ASTM A 234 WPB,WPC,WPH stainless ...