F wrenchNamed after the shape of the product resembling the English letter "F", it is also known as F-type wrench, valve wrench, F-type valve wrench, F-valve wrench, valve hook, valve hook wrench, etc. There are various types of F-wrenches, including steel F-wrench, stainless steel F-wrench, explosion-proof F-wrench, and anti slip chrome plated F-wrench. Among them, steel F-wrench, stainless steel F-wrench, and anti slip chrome plated F-wrench are welded together. Explosion proof F-wrench is precision cast from explosion-proof copper alloy and is a valve specific wrench. F-wrench is an essential tool for equipment installation, maintenance, and repair work. F wrench is an ideal tool for opening and closing valves, as well as maintaining and repairing valves. The application scope of F wrench: Large industrial F wrench is suitable for industries such as petroleum, chemical, metallurgy, power generation, refining, shipbuilding, petrochemicals, machinery, oil fields, natural gas, mining, etc.