一种操纵性增强的伸缩式支柱和使用该伸缩式支柱的泛光灯。

A telescopic supporting column and a floodlight using the same with enhanced maneuverability.

本发明涉及一种无龙骨抗伸缩式实木地板。

The invention relates to a keelless anti-expansion solid floor board.

平移式舷梯，引水员舷梯，双节伸缩式舷梯按订货主的要求承担设计、制造。

Two-pieces adjustable ladder can be designed and manufactured according to order demand.