Ningbo Maosheng Pneumatic Machine CO.,LTD is Iocated at the downtown of Hongtang JiangBei District of ... 1981 which has a history of 24 years,and covers an area of more than 10,000 sq.m.Its products ... muffler,plastic porous filter,powder compacting press,copper base and ferrous oily bush,various kinds of gear;fluorine self-lubricating bearings ...