... gas, coal gasifier gas, coke gas,wood gas, syngas, producer gas,coal oven gas, coke gas, coking gas, pyrolysis gas, converter gas, LD converter gas, blast furance gas ... gas, mine gas, coal mine methane, coal bed methane, coal bed gas, shale gas, oil shale gas,LNG, flare gas which is medium heat value to high heat value gas. 3 ... Acceptable Longmen Milling Machine XKA2130 3 4.0 Acceptable Milling Machine ...