language
Qualifications Honors
Patent certificate of efficient and accurate grooving boring bar machining grooving method
Patent certificate of adjustable high-efficiency tooling flange for processing IS pump cover
Processing method of intermediate nozzle-patent certificate of invention
Patent certificate of movable triangular chuck for machining intermediate nozzle
Patent certificate of suspension processing clamping support device
Patent certificate of combined tool rest for machining double suction ring of S pump
Patent certificate of invention for processing double suction ring of S pump
Patent certificate of efficient and accurate grooving boring bar
