印度采购需求：PDC喷嘴、硬质合金套筒、喷嘴、硬质合金喷嘴、碳化钨喷嘴、硬质合金喷嘴头

Subject: RFQ: Corrosion-Resistant Tungsten Carbide Inserts I'm looking for a technical quote and lead-time for tungsten carbide shredder inserts suitable for our MSW application. We need a robust solution to handle aggressive materials that include abrasive sand and heavy metals, plus high moisture and acidity, which leads to premature failure of standard grades. Key specs we're after: corrosion-resistant Ni-Cr or Co-Ni-Cr binder, coarse grain structure (3.0 to 5.0+ microns), binder content of 10%-15%, hardness of 87.0 to 89.5 HRA, and a classification similar to ISO K30-K40. Required quantity is 500 units, square shape, 19.11mm size, and 6.43mm thickness.