Since its founding in 2001, Wonjae Industrial Co., Ltd. has been producing steel-grating products, and has supplied its products to many sites. However, after having realized the insufficiency and limitations of existing steel grating, it has put a lot of efforts into producing the best grating through a lot of tests and improvements.
As a result, Wonjae Industrial Co., Ltd. has developed innovative products such as its Style Safety Grating and I-Beam Heavy-duty Grating and had them patented. These products illustrate Wonjae Industrial’s will to relentlessly develop and innovate its products.
Wonjae Industrial is leading the grating industry based on continuous innovation and R&D for users’ convenience with development of new technologies and products adopting environment-friendly plating. Moreover, it is eager to expand abroad through continuous employee training for the overseas market.

I-Beam Heavy-duty Grating and Style Safety Grating
I-Beam Heavy-duty grating, the D-shape steel is integrated into I-beam shape, maximizing durability and preventing noise, robbery and breakaway. As heavy-duty grating, the weak rear section is easily attached and can be constructed alone. Regular grating always makes noise, resulting in complaint from neighbors. However, this
product uses connectable heavy-duty grating to solve such problems and assures safety. Its lengths are 250 units and 350 units to disperse the force of compression to decrease noise.
The top part of style safety grating is flat, accessible for both pedestrians and cars with good drainage. The product is ideal for stadiums, public offices, parks, etc. Especially, it provides convenience for the handicapped as it plays a pivotal role as a safe grating. It features 1,000 hours of safety guaranteed and fine bonding power with top coating. Various metallic colors can be expressed and scratches are also protected effectively. Mixed coating on metal provides excellent non-slip feature.
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Sinwoo vibration-resistant pressure gauges are designed to withstand the shock and vibration of marine diesel engines. They are simply the best anti-vibration pressure gauge for marine engine. Non-flammable tape is applied to various areas such as shipbuilding and marine engines. It is used to prevent fire in case of oil and fuel leak in the connection parts of pipes and various auxiliary machineries according to the Solas rule. As it is mandatory to use nonflammable tape, the tape is expected to be exported significantly in line with increasing demand.

Automotive Fluid Connectors & Machining Parts and Oil Hydraulic Fittings
fittings. SamHo has so many special customized fittings and machined parts for industrial use such as gas hose assembly and lubricant connection. It also specializes in jump size and “special” fittings, maintaining a full line of machining capabilities. It reduces lead times for the design and fabrication of fittings adapted to clients’ special needs.


The mast roller bearings are used in heavy duty and shock loading of the guide roller during the vertical movement. It is designed to be a suitable structure for forklift masts. Deep groove ball bearings are made for special applications. The load capacity is 0.5 ton (1100 lb) to over 25 tons (55,110 lb) for forklift masts.

which are a separable type from the top to the bottom, are also highly competitive. This is known as the world’s first domestic pure technology that can adjust the angle of the upper and lower slots by using a single motor as a variable type electric blind installed outside the window. Among the types for the product are: General type; separation type; and highly functional type.

