Question: Arnold Laver Ltd is merchant whose trade formed the backbone of many industries such as what?

Context articles: Wu Feng
List of Marqueses de Casa Loring
Karkhano Market
Zorrotzaurre
Invoice price
Arnold Laver
British timber trade
Bessie Monroe House
Bisco industries
Hans Kohlhase

Wu Feng (; 1699, Pinghe County, Fujian-1769, Zhuluo County) was a Chinese merchant whose legend was once popular in Taiwan.
The Marquis de Casa Loring is a title in Spanish nobility.
 It was created in 1856 for George Henry Loring after he and his family used their wealth to pay for the care of the poor of Málaga, Spain, during a cholera outbreak.
 The first Marquis was a dual citizen of Spain and the United States and a son of a successful cross- Atlantic trader and merchant whose family in turn were descended from an early resident of Hingham and Hull, Massachusetts, Deacon Thomas Loring.
The Karkhano market, located in Peshawar, Pakistan, established in 1985 has more than 4,500 shops, owned by Pashtun traders.
 The name Karkhano means industries in English and is a word of the Pashto language.On the right side of the markets are many industries which are actually located in the Hayatabad industrial estate.
 As the industries emerged in this area so did these markets.
 The people in Peshawar usually visit these markets because the prices of commodities in the shops are less than in other commercial parts of Peshawar.
 This market gets a huge amount of contraband from smugglers.
 The Market sells anything from electronics to clothing including clothes, cosmetics, toys, watches, cigars, video games, shoes, etc.
 The rising price of oil has seen a discount price of smuggled petrol in the market.
Zorrotzaurre (Spanish: "Zorrozaurre" ) is an artificial peninsula located within the Deusto district of Bilbao, Spain.
 It was formed during the 1950s and the 1960s, when a canal was built to facilitate navigation in the estuary of Bilbao.
 The project was stopped in 1968 with 400 meters left to finish, forming the current peninsula.
 The area reached its heyday during this decade, with many industries moving there.
 However, during the industrial crisis of the 1980s that struck the city, many industries were forced to shut down or relocate, and only a handful of them survived to this day.
The actual price paid to the manufacturer or distributor by the end-customer retailer, which is known as the invoice price.
 However, in many industries, the "invoice cost" actually varies from the "net purchase cost," or the actual price of a product.
 The invoice cost of a product is the price that the merchant pays for the product before marking it up to sell.
 The invoice cost is sometimes used in industries such as automobile sales to entice customers to buy.
Arnold Laver Ltd is a timber merchant based in Sheffield.
 The company was founded by Arnold Laver in 1920.
 They have 12 depots, employ approximately 600 people, and with a turnover in excess of £106 million per year.
The British timber trade was importation of timber from the Baltic, and later North America, by the British.
 During the Middle Ages and Stuart period, Great Britain had large domestic supplies of timber, especially valuable were the famous British oaks.
 This timber formed the backbone of many industries such as shipbuilding but not iron smelting which used charcoal derived from the wood of various trees.
The Bessie Monroe House is a historic house at 7 Ash Street in Salem, Massachusetts.
 It is notable as a good example of a Federal style house, and for its survival from planned demolition during Salem's urban renewal of the area in the 1970s.
 The house, a modest two story brick house located just north of Salem's downtown, was built in 1811 for Thomas Perkins, a local merchant whose brother was its first occupant.
 When the city began urban renewal planning for the area in the 1960s, the building was occupied by an elderly lady named Bessie Monroe.
 Out of concerns for her health the city allowed her to remain in the property after its taking, and proceeded with plans that included the demolition of many surrounding properties.
 However, the delay occasioned by her occupation until her death in 1975 was accompanied by a shift in attitude in the city toward restoring such properties, and it was eventually sold to owners prepared to rehabilitate the property.
bisco industries was founded in Chicago, Illinois by Glen Ceiley on March 15, 1973.
 At the time, Glen F. Ceiley was the sole employee of bisco industries and assumed the following roles: purchasing agent, salesperson, shipper, receiver and bookkeeper.
 bisco industries is a supplier and distributor of fasteners, hardware, and electronic components.
 bisco industries serves customers in many industries including electronics, aerospace and fabrication.
 bisco industries has 48 locations throughout the United States and Canada which employ over 380 employees.
Hans Kohlhase (c. 1500–1540) according to early modern German accounts was a merchant whose grievance against a Saxon nobleman developed into a full-blown feud against the state of Saxony, thus infringing the Eternal Peace of 1495.
 The campaign culminated in Kohlhase's execution in March 1540.