高级合金钢 meaning in English

high-grade alloy steel

High grade forging with various of s . s . steel and alloy
各种高要求和特殊牌号的不锈钢，高级合金钢、特种合金锻件的生产
In the conveying of petroleum , the service life and erosion resistant of advanced alloy steel and stainless pipe are not to be compared with steel plastic pipe . for the pipe of absorbing manganic ore , the adoption of steel plastic pipe can raise its service life to over 5 times ; in the liquid conveying of atomic energy plant
在石油输送管道中，即使采用高级合金钢或不锈钢管，其使用寿命和耐腐蚀性能也远比不上钢塑管；从海底吸锰矿石所用管道，采用钢塑管其使用寿命增加
In the conveying of petroleum , the service life and erosion resistant of advanced alloy steel and stainless pipe are not to be compared with steel plastic pipe . for the pipe of absorbing manganic ore , the adoption of steel plastic pipe can raise its service life to over 5 times ; in the liquid conveying of atomic energy plant
在石油输送管道中，即使采用高级合金钢或不锈钢管，其使用寿命和耐腐蚀性能也远比不上钢塑管从海底吸锰矿石所用管道，采用钢塑管其使用寿命增加