Galvanized pipes are steel pipes coated with zinc through the galvanizing process to prevent corrosion.

A Hollow Pipe, or Holo, is a steel tube with a square or rectangular cross-section

SPINDO presents GI (Galvanized Iron) type anti-rust hollow pipes that have double protection of thick zinc and zinc spray on the welded parts.

In fire protection systems, fire sprinkler system pipes serve as the main distribution channel that delivers water directly to the sprinklers

UL 852 is an international standard published by Underwriters Laboratories (UL) for Steel Sprinkler Pipes used in fire protection systems.

ASTM A252 is an international standard by the American Society for Testing and Materials (ASTM)

SNI 0039:2013 is the Indonesian National Standard for carbon steel water pipes, with or without zinc coating (galvanized)

API 5L is an international standard published by the American Petroleum Institute (API) to regulate the specifications of steel pipes.

Common Ceiling Problems  Have you ever seen a house or building ceiling suddenly warp, dent, or even collapse? This problem is often not just a matter of interior design, but is rooted in the thickness and quality of the hollow pipes used as the ceiling frame. Unfortunately, many products on the market only claim to have a certain thickness, but when tested, the results are far from expectations. As a result, ceilings quickly deteriorate and endanger building occupants.