Bollt ffatri o ansawdd uchel

1. Gradd: SUS201, SUS304, SUS316, A2-70, A2-80, A4-80,4.8 6.8 8.8 10.9 12.9

2. Maint: M3-48

3. Safon: DIN 315

4. Ardystiad: ISO9001, SGS, CTI, ROHS