通风管道

The company developed the production of "the new card" series of ventilation refrigeration equipment with high efficiency, energy saving, low-noise and other excellent properties, has formed 21 series, more than 1000 kinds of specifications, its main products have dedicated transformer cooling fans, various kinds of dedicated air-conditioning fan, fire smoke extraction fans, high-performance mixed-flow fan, blower pipes, roof fans, all kinds of centrifugal fans, material handling fans, as well as refrigeration and air coolers evaporative condensers and so on, are widely used in subway, tunnels, machinery, automobile , chemical, building, metallurgy, light industry, refrigeration, boilers, papermaking, pharmaceutical and other industries.

本公司研制开发生产的&明新牌&系列通风制冷设备，具有高效、节能、低噪等优良特性，已形成二十一个系列，一千多种规格，其主要产品有变压器冷却专用风机、各种空调专用风机、消防排烟风机、高效混流风机、管道风机、屋顶风机、各种离心风机、物料输送风机以及制冷用蒸发式冷凝器及冷风机等，广泛应用于地铁、隧道、机械、汽车、化工、建筑、冶金、轻工、制冷、锅炉、造纸、医药等行业。

These round aluminum louvers, sometimes referred to as vents, can be inserted into round heating ducts and are perfect in situations where heat loss is a factor.

这这种圆形的铝百叶，有时被称为通风孔，可以插入到圆形的供热管道中，非常适合存在热量损失问题的地方。

When using bulk supply of NF3, such as a Y cylinder or a tube trailer, the pigtail-to-valve connection should also be ventilated.

当需要大量供应NF3时，如Y钢瓶或管道拖车，还应该对猪尾管到阀门接头通风。

Theca box pressure gauges are used to measure micro pressure and negative pressure of gas that has no danger of explosion and does not erode alloy.

测量对铜合金不起腐蚀作用、无爆炸危险的气体的微压和真空，广泛应用于锅炉通风、气体管道、燃烧装置及其它类似设备上。

Today the solder joint is widely adopted, as evidenced by the majority of cities and states that have written codes to include copper tube and solder joints as desirable for general plumbing, water lines, vent, stack, waste and drain lines, as well as other uses in industry.

如今，焊料连接已经被广泛采用，证据就是美国大多数城市和州的正式规程中都将铜管道和焊料连接作为一般管件、水管线、通风、烟道、废水和排水管道以及其他工业用途的理想连接方式。

We also found the crank case ventilation valve diagram damaged, but the pipe which from this valve and to the valve are dry and no oil mark was found.

我们还发现，曲轴箱通风阀损坏，但这个阀的里外管道是干燥的，没发现油污痕迹。

There are more than 3000 different kinds of valves available. The products series cover hydraulic turbine input liquid control butterfly valve, soft sealing gate valve, clamp butterfly valve; flange valve, expansion butterfly valve, bi-direction metal seal ing butterfly valve, tri-eccentric metal sealing butterfly valve, eccentric semi - sphere ball valve, eccentric dual -semi - sphere ball valve, and sluice gate, hydraulic slow-closing c heck v alve , v ent valve, adjusting valve, body eccentric valve, dual eccentric butterfly valve, varied eccentric butterfly valve, Check valve with little-resistance, slow-closing, noise-eliminating , butterfly valve with mid temperature and pressure, Other types of check valves and check valve gate 、 expansion joint, and being widely used in petroleum industry, chemistry, food, medicals, light industry, paper, water and electricity, ship and boat, steel and casting, Energy and Environment industry. The main valves are ever used in heat-supplying projects of National council office.

我公司主要产品有双向三偏心金属密封伸缩蝶阀、水轮机进水液控蝶阀、软密封闸阀、三维偏心全金属密封蝶阀、自动补偿双向硬密封蝶阀、耐高温金属密封蝶阀、液控缓闭止回蝶阀、对夹式蝶阀、偏心式蝶阀、伸缩蝶阀、偏心半球阀、偏心球阀、通风阀、调节阀、双偏心蝶阀、无销蝶阀、微阻缓闭消声止回阀、旋启式止回阀、防泥沙型蝶阀、自动补水阀、阀板可移动蝶阀、偏心缓闭止回阀、多功能水力控制阀、闸门、伸缩接头和管道伸缩器等三十大系列3000多个规格，广泛用于电力、石油、化工、食品、医药、轻纺、造纸、供排水、船舶、冶炼、能源、环保等行业的腐蚀性、非腐蚀性气体、液体、半流体及固体粉末容器和管网中。

Construction machinery, construction materials, plumbing equipment, ceramics, stone, modified materials, construction chemical additives, coatings, paint, floor and carpet, wallpaper and wall mosaics, window materials, items shed and roof materials, glass, metal construction, plumbing equipment, sanitary ware, windows, metal accessories, valves, fasteners, standard parts, nails screen, heating facilities, air conditioning and ventilation systems, heating, electrical facilities, lighting systems, water systems and equipment, refrigeration systems, bathroom facilities, kitchen utensils, construction products and the structure of the roof, engineering Network, fire safety systems, building technology.

建筑机械、建筑材料、管道设备、陶瓷、石材、修饰材料、建筑化学附加剂、涂料、油漆，地板与地毯、墙纸及墙板镶嵌等、门窗材料、项棚和房顶材料、玻璃、建筑五金、水暖器材、洁具、门窗、五金配件、阀门、紧固件、标准件、钉丝网、采暖设施、空调和通风系统、供热技术，电气设施、照明系统、水系统和设备、制冷系统、卫浴设施、厨具、建筑制品和结构，屋顶、工程管网、防火安全系统、建筑技术等。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐