China songming group (SOMY) é um fornecedor global especializado e integrado de peças para máquinas de construção, empenhado em fornecer aos clientes produtos e serviços com boa relação custo-benefício, com adesão aos princípios de "orientação para o cliente, cooperação win-win".
A SOMY foi fundada em 2015 por especialistas da indústria de máquinas com mais de 20 anos de experiência profissional.
A SOMY estabeleceu um sistema de gestão e de garantia centrado no cliente, que vai desde a pré-venda e a venda até aos serviços pós-venda e que abrange o desenvolvimento de produtos, o controlo da qualidade e dos custos e a gestão da entrega.
SOMY estabeleceu relações comerciais amigáveis a longo prazo com clientes de todo o mundo, em particular do Sudeste Asiático, Europa, África e Américas.
21N-32-31212 Bolt
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- Grade 12.9 High Tensile Strength: Manufactured from premium alloy steel and heat-treated to reach Grade 12.9 hardness, providing maximum resistance to stretching and breaking under extreme mining loads.
- Precision Threading Technology: Features CNC-machined threads with tight tolerances to ensure a secure, vibration-resistant fit that prevents loosening during heavy-duty excavation.
- 100% OEM Interchangeability: Precision-engineered to match the exact dimensions and material properties of part number 21N-32-31212 for the PC1100 and PC1250 series.
- Superior Fatigue Resistance: Undergoes advanced quenching and tempering processes to enhance structural integrity, ensuring long-term durability in high-vibration environments.
- Anti-Corrosive Surface Treatment: Finished with a professional black oxide or zinc-plated coating to prevent rust and corrosion, even when exposed to harsh outdoor elements.
- Engineered for Mining Conditions: Specifically designed to handle the massive torque and structural stress experienced by Komatsu’s largest mining excavators.
- Strict Dimensional Inspection: Every batch is 100% checked for thread accuracy, head geometry, and overall length to ensure zero-defect installation on the jobsite.
- Cost-Effective Wholesale Solution: Directly sourced from the Jining industrial hub, offering international distributors significant savings without compromising on technical quality.
- Reduced Equipment Downtime: Reliable high-strength fasteners prevent unexpected structural failures, keeping your mining fleet operational and productive.
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Komatsu PC300-8 PC350-8 PC130-8 PC400LC-8 Evaporador ND446600-0991
Peça genuína para Bulldozer 195-30-68491 Tampa para a estrutura de rastos D375A do Bogle traseiro 







