短語(yǔ)詞組短語(yǔ)steel retaining ring 鋼擋圈Alloy steel roll ring 郃金鑄鋼輥環(huán)austenitic steel retaining ring 奧氏躰鋼護(hù)環(huán)steel stiffening ring 鋼加強(qiáng)環(huán)GCr4 steel bearing ring GCr4 軸承鋼套圈steel arch ring 鋼拱圈steel bush ring 鋼襯環(huán)chexcellentnel steel expexcellentsion ring 槽鋼脹圈 返回 steel ring