- silicon metal grade 553 441
- 2017-01-17 05:21
- 1,high melting point 2, good heat resistance 3,high oxidation resistance 4, high resistivity 5)used in industry
- silicon metal
- 2017-01-17 05:21
- Size: 10-100mm(according to customers' request) Grade; 441 553 2202 3303 Shape: lump,powderApplication: for steel-ma