2021년 7월 12일 hitech PRODUCTS PIPE 1/8”- 80”, sch5S – XXX FITTING3/8”- 120”, sch5S – 120mmT FLANGE1/4”- 120”, CL.150 – CL.2500 STRUCTURAL STEELBar Angle Channel Beam Hollow sections Tubes Plate Sheets Coils Special products