METHOD FOR MANUFACTURING BASEBALL BAT

摘要

A method for manufacturing baseball bats comprises the following processes: 1. rolling sclerous pieces with hands; 2. firing the sclerous pieces; 3. the sclerous pieces sandblast; 4. rolling hitting parts; 5. primary model; 6. providing wind pipes; 7. making hollow rolls; 8. through the wind pipes 9. laying the bats; 10. cleaning moulds; 11. moulding; 12. filling gas; 13. cooling; 14. removing the moulds; 15. measuring gas leaked; 16. drawing the wind pipes out; 17. sandblastting; 18. repairing.