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There are two standard I-beam forms: Rolled I-beam, formed by hot rolling, cold rolling or extrusion (depending on material). Plate girder, formed by welding (or occasionally bolting or riveting) plates. I-beams are commonly made of structural steel but may also be formed from aluminium or other materials. A common type of I-beam is the rolled steel joist (RSJ) - sometimes incorrectly rendered as reinforced steel joist. British and European standards also specify Universal Beams (UBs) and Universal Columns (UCs). These sections have parallel flanges, as opposed to the varying thickness of RSJ flanges. UCs have equal or near-equal width and depth, while UBs are significantly deeper than they are wide. I-beams engineered from wood with fiberboard and/or laminated veneer lumber are also becoming increasingly popular in construction, especially residential, as they are both lighter and less prone to warping than solid wooden joists. However there has been some concern as to their rapid loss of strength in a fire if unprotected.

H beam is developed and optimized from I beam, a kind of economical profiled steel with a better mechanics capabilities. The web plates and the flanges are in plumb. The inner flange runs parallel to the outer one. Its flanges are very straight and the edges are clear, especially named by the similarity between the section shape and the letter "H".

Now Toko Baut Bali. has making is best efforts in order to perform its function perfectly at any architecture by supplying the highest quality products to all customer as the front running enterprise of producing the building materials with the best technic and quality.
C-CHANNEL
1. Light-weight steel frame
2. For smaller scale construction comparing to H-beam
3. Cost less
4. Anti-corrosiveness, Anti-ocean erosion.

Screen, also called wire mesh, is a large regulatory category of wire fabric. It is made out of chemical fibers, silk, metal wire through certain weaving methods. Screen has wide applications in the industry, agriculture, science and technology and national defense. Up to the most advanced technology, high-tech industries, down to daily life and culture, wire mesh screen develops simultaneously with the national economy, and plays an important role in the peoples’ daily life. Wire mesh, or screen is mainly used in: Aviation, aerospace, printing, dyeing, electronics, mining, pharmaceutical, food, food processing and chemical industry. Mesh Screen has basically four functions: Screening, filter, Printing and strengthening. In addition, woven wire mesh can be used to make quarry screen in petroleum industry, as acid washing mesh in chemical and chemical fiber industry, and electro galvanizing industry, it is used as sifting screen for solid particles and powder, or as filter media for liquid and gas in the industries such as metallurgy, coal, petroleum, chemical, pharmacy, automobile, porcelain, glass and so on. .

Kami berikan gambaran sedikit mengenai besi beton. Besi beton yang ada di pasaran banyak jenisnya, namun secara umum di bagi menjadi dua yaitu: besi beton SNI (Standar Nasional Indonesia) dan Non - SNI atau yang sering di sebut dengan istilah besi beton banci ataupun non - full. Besi beton SNI memiliki standar kekuatan tertentu, untuk besi beton polos standar kekuatannya sering disebut sebagai BJTP24, sedangkan untuk besi beton ulir standar kekuatannya bertingkat mulai dari BJTS 30, 35 dan 40. Besi beton SNI ini lebih banyak di gunakan untuk pembangunan gedung bertingkat banyak untuk menjamin kekuatan struktur bangunan sesuai standar yang telah di tetapkan atau diperhitungkan oleh konsultan perencana bangunan tingkat tinggi. Besi beton SNI yang umum di pakai adalah KS Cilegon, IS, CS, dan TY. Besi beton KS Cilegon terkenal dengan kualitas dan harga yang mahal. Ada istilah lain yang sering di perhatikan para kontraktor yaitu, toleransi. Toleransi ini menandakan seberapa selisih antara marking diameter besi beton dengan diameter real besi beton, misal besi beton 8 KS Cilegon memiliki toleransi 0,1 maka diameter real dari besi beton ini lebih kecil 0,1 mm dari markingnya atau diameter riil hanya 7,9 mm. Panjang standar seluruh besi beton adalah 12 meter, kecuali besi beton tarikan (tidak memiliki marking) terkadang memiliki panjang kurang dari 12 m..