arabera joselias machacuay cuno 3 years ago
264
Honelako gehiago
by RILDO ANDERSON ATAULLUCO CALDERON
by Roberto Delgado Torres
by Lara Goldberg
by Nicolle Rojas Beltran
Subtopic
4. cemento tipo UG-RTCR
3. cemento MS-RTCR
2. cemento tipo MP-RTCR
1. cemento portland