As “ unpaid laborers , ” the other sheep willingly expend their physical strength and their resources in support of the worldwide preaching work that Christ assigned to his anointed followers on earth . ​ — Acts 1 : 8 ; Revelation 12 : 17 . ① gas temperature. Dust gas temperature is an important factor in filter bag selection. Usually less than 130 ℃ dust gas called room temperature gas, dust gas is greater than 130 ℃ called high temperature gas, so the filter bags can be divided into two categories: the normal temperature filter bag and high temperature filter bag. Therefore, the appropriate filter bag should be selected according to the flue gas temperature. Some people called 130-170 ℃ temperature, but the filter bag and more high-temperature type. Hi. The Quick answer, hhayi okwamanje – but quite soon, I’ll mail you when its ready for testing if you want.