Contractors will be required to supply quality equipment. Skilled labour and know-how A good quality control system in the installation work the door-window by a specified and well testing.
Contractors must supply Material quality Skilled labor and expertise, with good quality control. The installation of doors - windows, as specified in the form and assembly. Ready to test
Contractor to supply equipment and materials, quality, skilled workers and skilled. มีระบบควบคุมคุณภาพ better. In the installation of door window. According to enter in a list and composite with the test.