Nqe lus piav qhia:
1) Qhov loj me: Raws li cov neeg siv khoom
2) Txuj Ci: GB, AISI, SAE, ASTM / ASME
3) Hardness: Raws li Cov Neeg Siv Khoom 'Xav Tau
4) Kev sib xyaw ua ke tshuaj: Raws li cov neeg siv khoom'demand.
5) Kev Soj Ntsuam: Ultrasonic Soj ntsuam, Microstructure Test
6) Cov Khoom Siv: Raws li cov neeg thov kev thov
7) Daim Ntawv Thov: Hlau Tshuab Tshuab Hlau, Hlau Tshuab Ncaj, Hlau Forging Machinery, Hlau Sau Machinery, Hlau Txheej Machinery, Hlau Casting Machinery