This SOP defines bandsaw blanking accuracy, machine and blade checks, workholding, cutting parameters, inspection, deburring, and troubleshooting for Haifeng polyurethane-equipment components.
Jiacheng Dai 
This SOP defines CNC lathe accuracy, workholding, tool setting, turning parameters, roughness control, thermal compensation, in-machine inspection, and corrective actions for precision Haifeng components.
Jiacheng Dai 
This SOP defines surface preparation, environmental conditions, paint mixing, spray parameters, film thickness, curing, inspection, and troubleshooting requirements for coating Haifeng polyurethane equipment.
Jiacheng Dai 
This SOP covers sheet-metal shearing, punching, and press-brake bending for Haifeng equipment, including clearance, straightness, hole-position, springback, crowning, inspection, and weld-shrinkage allowances.
Jiacheng Dai 
This SOP defines CNC positioning and repeatability targets, equipment calibration, tool control, workholding, cutting parameters, thermal compensation, in-machine inspection, and corrective actions for precision Haifeng equipment components.
Jiacheng Dai 
Mechanical assembly accuracy in Haifeng polyurethane equipment underpins metering accuracy. This SOP defines critical alignment, fit, surface-finish, inspection, and run-in requirements for reliable assembly.
Jiacheng Dai 
This welding SOP defines materials, WPS requirements, fit-up tolerances, heat-input controls, inspection and leak testing for polyurethane equipment frames and piping.
Jiacheng Dai 
Electrical assembly accuracy directly affects metering accuracy in polyurethane equipment. This SOP defines preparation, installation tolerances, wiring, validation and troubleshooting requirements.
Jiacheng Dai 
