By make experiment of plunger case surface abrasion hardness, in the last, adopt high strength engineering plastic to act as anti-abrasive material, make the success, get great result.
通过对柱塞的表面耐磨层进行各种试验，最后采用了高强度工程塑料进行压注试验，取得了成功，效果显著。
By make experiment of plunger case surface abrasion hardness, in the last, adopt high strength engineering plastic to act as anti-abrasive material, make the success, get great result.
通过对柱塞的表面耐磨层进行各种试验，最后采用了高强度工程塑料进行压注试验，取得了成功，效果显著。
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