日韩在线视频中文字幕I草草影院网址Iyjizz国产I国产精品一区二区三区免费I91精品国产91久久久久久三级I毛片视频免费I黄色另类小说I99re国产在线I亚洲丝袜国产I欧美噜噜噜I日本成年人黄色片I天天狠天天情天天躁I久久香蕉影视I黄色av小说I日韩男女视频Iwww久I日本久久不卡I在线播放国产视频Ijzzijzzij亚洲成熟少妇Iav手机在线看I久久精品国产亚洲av无码娇色I日韩av导航I欧美性猛交免费看I中文字幕第5页I黑人激情视频

The quality and efficiency in parallel -mechanical pressure riveting and welding

Use the overall pressure riveting process (not play rivet process) for aluminum alloy frame and back plate , strengthening the four corners with aluminum soldering. The back plate is smooth, level off and has good sealing low heat loss, besides,no deformation under the 1000 kg dead load.

The quality and efficiency in parallel - Six sides has thermal insulation and laser welding

Our products adopt six surface heat insulation technology

The quality and efficiency in parallel- Ultra strong laser welding Absorer Technology

*Intensive laser welding plate;

*Unit length density affect the heat transfer performance of the solder joint.

**the industry of laser welds spacing is 5 mm more, ours is 2 mm;