The pump casing, impeller, motor housing and stationary base elbow shall be manufactured of close-grained cast iron, ASTM A48, Class 30.
泵壳，叶轮，电机壳和固定底座弯头都应该采用符合美国材料试验协会ASTMA48级别30致密铸铁制造。
The submersible motor enclosure including frame, end brackets, flanges and cap assembly shall be constructed of close-grained cast iron, ASTM A-48, Class 30 or better.
潜水电机壳体，包括机架，尾轴承架，法兰和罩盖总装，必须采用符合美国材料试验协会ASTM A - 48类别30标准的、密实的铸铁或更好的材料制造。
HONIC 400 is not only recommended for cylinder honing on hard, soft and close-grained cast iron but also for flat honing and lapping operations on gauge blocks and gudgeon pins.
雄力400不但推荐于硬质及软质铸铁的汽缸内径搪磨，还适用于块规的平面精磨及轴头销的研光工序。
HONIC 400 is not only recommended for cylinder honing on hard, soft and close-grained cast iron but also for flat honing and lapping operations on gauge blocks and gudgeon pins.
雄力400不但推荐于硬质及软质铸铁的汽缸内径搪磨，还适用于块规的平面精磨及轴头销的研光工序。
应用推荐