API 5L ERW pipe is resistance welded pipe that meets American Petroleum Institute (API) standards. This kind of pipe is usually used in the oil and gas industry to transport natural gas, oil and other fluid media. API 5L is an API standard used to regulat
Colorful round pen holder makes it easier to hold pens.The pen holder is one of the stationery. For the barrel of vessels holding pens, mostly straight mouth, straight wall, mouth base, relatively simple shape, no big changes.