液力传动用合金铸铁密封环
Alloy cast iron rings for hydrodynamic drive
2020-04-16
BS HC 404-1977
Specification for chromium-molybdenum alloy cast iron ring pots (suitable for centrifugally cast and sand cast sealing rings, piston rings and cylinder liners)
铬钼合金铸铁环罐规范（适用于离心铸造和砂型铸造密封圈、活塞环和缸套）
1976-12-31
BS HC 403-1977
Specification for high chromium alloy cast iron ring pots (centrifugally cast) (suitable for piston rings up to 400 mm in diameter)
高铬合金铸铁环罐规范（离心铸造）（适用于直径不超过400 mm的活塞环）