? September 2013, Start cooperation with Sigma Elevator (HK).，Shenzhen Hpmont Technology Co., Ltd.Shenzhen Hpmont Technology Co., Ltd.

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About us

2013

September 2013, Start cooperation with Sigma Elevator (HK).

Release time：2018-07-17

September 2013, Start cooperation with Sigma Elevator (HK).

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last：December 2013,Accumulated sales of inverter of 100000 units.

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