... shielded welding, the appearance of the formation of non-defective, strictly after welding to eliminate stress, ... . It Sizing Block, angle iron, induction block, non-contact switch, etc. visit. Sizing Block 2 were fixed in ... in the groove-oriented, by adjusting the trip switch trips, the use of the slider displacement ... in the lower part of Level Gauge, used to observe the liquid level. The mouth of the ...