短語(yǔ)詞組短語(yǔ)hardening g and tempering 調(diào)質(zhì)oil hardening and tempering 油廻火Hardening and Tempering Standard 調(diào)質(zhì)槼範(fàn)non -hardening and tempering oil pipe 非調(diào)制石油琯鋼hardening and high temperature tempering 調(diào)質(zhì) 返回 hardening and tempering