试制铸件 meaning in Chinese

pilotcasting

Steel , nickel base and cobalt base alloy remelting stock and castings - technical specification - pre - production and production castings
钢镍基合金及钴基合金重熔坯料和铸件.技术规范.试制铸件和产品铸件
En 2076 aerospace series . aluminium and magnesium alloy ingots and castings . technical specification . part 3 : pre - production and production castings
航空航天系列.铝合金和镁合金锭和铸件.技术规范.第3部分:试制铸件和生产铸件
Aerospace series . titanium and titanium alloy remelting stock and castings . technical specification . part 3 : pre - production and production castings
航空航天.钛和钛合金制预制材料和铸件.交货技术条件.第3部分:试制铸件和系列铸件