You are welcomed to wholesale or buy customized perforated liner in stock and get perforated liner free sample from us, which is one of the best perforated liner manufacturers and suppliers.Perforated liner is manufacturing with API casing, joints with size up to diameter 20"and length R3.Every joint perforated is deburred internal and external as well as drift tested according to API standards. Every hole is visually inspected and cleaned of burr material.Upon request, custom hole sizes can be drilled in any number and any pattern.The size, grade and weight of the base-pipe are according to API casing or tubing specification.Pipe SizeHoles per feetSize of holePerforated Area per Feet3/4"783/16"2.151"545/16"4.141-1/4"665/16"5.061-1/2"785/16"5.982-1/16"785/16"5.982-3/8"903/8"9.942-7/8"1023/8"11.263-1/2"1263/8"13.914"1383/8"15.244-1/2"1503/8"16.565"1623/8"17.885-1/2"1743/8"19.216-5/8"1863/8"20.537"2223/8"24.519-5/8"2943/8"32.46