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Nero Marquina. Nero Marquina marble (mármol Negro Marquina [1]) is a high quality, black bituminous limestone extracted from the region of Markina, Basque Country in northern Spain. [2] This variety of natural stone gets its black color from naturally-occurring bitumen. [3] It is one of the most important "marbles" from Spain.
The Marquina non-drip oil bottle or cruet (in Catalan: setrill antidegoteig de Marquina, in Spanish: aceitera antigoteo de Marquina) is a transparent and conical cruet designed to contain oil or vinegar without dripping or dirtying, and was designed by Rafael Marquina in 1961. The sales success of this model has led to countless plagiarisms of ...
The most common slab format is 3040 mm x 1440 mm for Quartz and 3050 mm x 1240 mm for Breton-based marbles, but other sizes like 3040 mm x 1650 mm are produced according to market demand. Engineered stone is non porous, [ 7 ] more flexible, and harder than many types of natural stone.
A precast concrete walled house under construction An example of low-quality precast concrete with exposed dowels, connectors, indications of cracks, and malformations, even during its installation, Barangay Lantic, Carmona, Cavite, Philippines Interior view of the walls, supports, and roof of a precast commercial shop in Williston, North Dakota, US.
The producer price index released a day earlier on January 14 reported a modest 0.3% increase in wholesale prices in December, rising 3.3% year over year, up from 3% in November.
The arms factory, Esperanza y Cia SA (Ecia) was founded in 1925 by prominent businessman Juan Esperanza Salvador [] (1860–1951). Esperanza-Salvador was one of the co-founders of Astra-Unceta y Cia SA.
The precast concrete slab has tubular voids extending the full length of the slab, typically with a diameter equal to the 2/3–3/4 the thickness of the slab. This makes the slab much lighter than a massive solid concrete floor slab of equal thickness or strength. The reduced weight also lowers material and transportation costs.
Carrara marble has been used since the time of Ancient Rome, when it was called marmor lunense, or "Luni marble". [2] [3]In the Middle Ages, most of the quarries were owned by the Marquis Malaspina who in turn rented them to families of Carrara masters who managed both the extraction and transport of the precious material.