When API adaptors don't work, the API dust cap protect it from dust and debris. Dust cap can prevent oil leakage with O-ring inside.
Located at modernized Puqi Special Industrial Park. It’s close to the East Sea of China in the south and near famous Yandang Mountain in the north. It covers only 50km from our company to Longwan International Airport in Wenzhou with exit of expressway and national highway nearby. Ningbo is our nearest port.