Thanks to DaimChoc Reports and Alucardlee

TW-C combiner:

TW-C01 Bulldozer (Bonecrusher)
TW-C02 Unearth (Scavenger)
TW-C03 Burden (Long Haul)
TW-C04 Allocator (Hook)
TW-C05 Shovel (Scrapper)
TW-C06 Concrete (Mixmaster)

50cm/~19.6inches tall.