Trap Doors  Manufacturers, Traders, Suppliers

Caterpillar Inc. owns a complex portfolio of brands whose roles and relationships support the growth to achieve our enterprise goals. The Caterpillar brand is used in communication to represent our corporation with the investment community, employees, public policy makers, and other key stakeholders. The Caterpillar brand is the umbrella that shelters all other brands in the portfolio.

The KOPEX Group is the third biggest global player in the mining machinery, equipment and services market. The Group offers complex execution of mining projects to its customers.
The complex services are rendered by KOPEX-Przedsiębiorstwo Budowy Szybów S.A. (KOPEX-PBSz S.A.). The company is focused on specialised mining services, including, driving vertical and lateral workings as well as tunneling.
A huge experience gained over the last sixty years and significant achievements in mining, industrial and civil engineering as well as staff potential and machine fleet, contribute to the fact that for several years the company has been a market leader with regard the underground construction works, using underground mining techniques and technologies.
Own technical solutions that have been elaborated for years and a permanent implementation of up-to-date, global technologies, accompanied by upgrading the machine fleet and raising professional qualifications, enable the company to execute mining contracts not only in Poland but also abroad (e.g. in Germany, France, Indonesia, Italy and Turkey), in coal-, ore-, and salt-mines.
Mining Design Office, being an integrated part of the company, with its highly qualified engineering personnel and equipped with specialised hardware, state-of-the–art CAD software is capable of executing a wide range of design services.
Several fields related to the mining of hard coal, ores, salt and other minerals, such as: geology, hydrogeology, geophysics, mining, strata mechanics, ventilation, automation, electrification, mechanization, waste storage and environmental protection are covered by the design services.
Experience, qualified personnel, own means of transport, specialised equipment and up to date technologies enable us to complex execution of even the most comprehensive projects, as a general contractor (turnkey project services), or as a substitute subcontractor.
The KOPEX Group is in technical, organisational and logistic respects capable of executing even the most demanding tasks, including turnkey construction of mines.

Kennametal is the premiere global provider of metalworking solutions using tungsten carbide inserts

Henan Zongxiang Heavy Industry Import & Export Co., Ltd, established by experienced crew on the rail & track field, is a professional & reliable supplier that provides all kinds of rail & track accessories. As an international trade subsidiary of Zhongxiang Steel Group Inc., was founded in 1997. We have more than two decades experience on this field, covering an area of 33,000 square meters, with about 300 employees, 4 production lines, 2 R & D department, and 5 quality control staff. With advanced technology, powerful processing capacity and excellent service, our products have been well recognized by our customers from domestic & overseas market.Our products mainly used by railroads, mining companies, heavy industries, overhead crane, railroad and tunneling industry, transit authorities, and operators of port facilities. We have the inventory, resources, and experience to meet your needs. Main products in our whole Group include as below Steel railsGB light rail, heavy rail, crane rail & other standard steel railsRailway accessories turnout switch, fish plates, rail clip, rail clamp, track spike, rail bolt/nut /washer, rail pad and etc.Mining support productssteel arch support, mining anchor bolts, mining plastic composite net, plate washer and etc.other steel productschannel steel, angle steel, I-beam steel, mining I-beam steel, U-beam steel, H-beam steel, steel plate, and etc.Steel processingWe try our best to treat every customer with the importance they deserve. We pride ourselves on being conscientious, reliable, and doing the right thing in every situation.

Founded in 1992, Zoomlion Heavy Industry Science & Technology Co., Ltd. is mainly engaged in the R&D and manufacturing of construction machinery, agricultural machinery and other high-tech equipment and new construction materials. Over three decades of innovative development, Zoomlion has gradually grown into a global enterprise, with the key products covering 18 categories, 106 product series, and 660 varieties. Zoomlion has been listed in Shenzhen and Hong Kong stock markets, becoming the first company in the industry to be listed in both markets.