Polyethylene pipe PE100 ordering from Kazakhstan

I am looking for
1. Polyethylene pipe PE100, pressure;
Type: PE100, SDR 11, S5, PN = 1.6Mpa;
Nominal outer diameter - 160 mm.;
Nominal wall thickness - 14.6 mm;
Purpose - technical, recycled water supply;
Operational requirements: ambient temperature -50 + 50 * С
Compliance with GOST 18589-2001. Certificate of quality.
Quantity – 3 720 meter.