... -fluxing alloy, cobalt base self-fluxing alloy and so on QH-1/h(2/h)Introduction Specific tool for one step ... .3. Fluent powder feed, concentrated power beam, without any block..QH-4/hApplicable alloy powder: nickel base self-fluxing alloy, cobalt ... .302.0~3.03.0~3.53.5~4.0 QH Spray Welding Torch