KHOOM

Peb yog cov chaw tsim khoom loj tshaj plaws ntawm cov hlau hollow seem hauv Suav teb. Peb feem ntau tsim cov kav dej ERW, LSAW kav dej, SSAW kav dej, HFW kav dej thiab cov kav dej seamless. square hollow seem: 10 * 10 * 0.5-1000 * 1000 * 60mm rectangular hollow seem: 10 * 15 * 0.5-800 * 1100 * 60mm circular hollow seem: 10.3-2032mm THK: 0.5-60mm