RSD-E72/E73/E74

    Royalstar wooden door with high quality Chinese fir and wood as the main material, through the strict environmental protection detection, environmental protection level of Europe E0 level (via detecting formaldehyde release a quantity to 0.3 ㎎ / L), adhesive glue choose special environmental protection material, put an end to urine aldehyde plastic, realizing the acme healthy environmental protection products.

    Royalstar each set of wooden door must be over 30 to 45 days production cycle, 52 production working procedure, 28 standard testing, process comprehensive, meticulous, fir base material structure, uniform structure, namely joining together no juncture, and take the lead in using prestressed technology, internal stress offset each other, make the wooden door in the best state of prestressed, ensures the high stability of the wooden doors.