1. 对回转窑筒体等厚和异厚板采用细滴过渡CO2气体半自动保护焊焊接工艺技术，高效优质，合理可靠。 For the plates with the same & different thickness on the canister part of the kiln, half automatic CO_2 gas shield welding is used for good quality, high efficiency and reliability.