fulfill the standard: UL1642-2005 "Mechanical Test in Lithium Battery Standard - Extrusion Test" UL2054-2005 "Mechanical Test in Battery Standard - Compression Test" UL2054-2005 "Battery Shell Test in Battery Standard - Squeeze Test" SJ/T 11169-1998 "Standard Extrusion Test for Lithium Batteries" YD 1268-2003 "Mobile communication handsets - Battery and chargers - Safety requirements - squeezing performance test" QC/T 744-2006 "Standard Extrusion Test for Metal Hydride Nickel Battery for Electric Vehicles" QC/T 743-2006 "Standard Extrusion Test for Metal Hydride Nickel Battery for Electric Vehicles" SJ/T 11170-1998 "Extrusion test in standard mechanical tests for household and commercial batteries" SJ/T 11170-1998 "Extrusion test in standard battery enclosure test for household and commercial batteries" GB 8897.4-2002 "Polar cells - Part 4: Safety requirements for lithium batteries - Mechanical test - Extrusion test" Globe Valve,Globe Gate Valve,Globe Stop Valve,Ss Globe Valve Haogong Valve Co Ltd , https://www.haogongvalve.com