... :2000 2. CE certificate 3. Competitive price & superior performence SOV hydraulic breaker bolt 1. Materials: iron, carbon steel, brass, steel etc.2. ... oil, water, air transfer for automobile, mining machine, engineeing machine, hydraulic machine, injection molding machine, air-conditioner etc.3. Features: high ... zinc plating, siver plating5. Standard: JIC, JIS, BSP, METRIC SOV hydraulic breaker bolt