Galvanized Seamless Steel Pipe

  Hot Dip Galvanizing Process Material Inspection (Steel Pipe) --- Hanging --- De-greasing --- Rinsing --- Pickling --- Washing --- Dipping Fluxing --- Hot Air Drying --- Inside and Outside Hot-dipped Galvanizing Blow Carbon Steel Seamless Pipe --- Cooling --- Passivation and Rising --- Unloading --- Inspection and Trimming --- Type Identification --- Packaging and Storing and Transportation Commodity Galvanized Seamless Pipe OD   21.3mm ~ 406.4mm thickness    0.5mm ~ 20mm length   0.3mtr ~ 18mtr material   Q195—Grade B, SS330, SPC, S185Q215—Grade C,CS Type B, SS330, SPHCQ235---Grade D, SS400, S235JR, S235JO, S235J2Q345---SS500, ST52 Standard  GB/T13793-1992,GB/T14291-2006, GB/T3091-       1993,GB/T3092-1993,GB3640-88BS1387/1985,ASTM A53/A36,EN39/EN10219,API 5L,GB/T9711.1-99 etc zinc coating   pre galvanized steel pipe: 60-150g/m2hot dipped galvanized s…