GEM Technic manufactures and supplys screws, barrels and front end components for TOYO injection molding machines.

G Series:
TOYO PLASTAR Ti-30G, TOYO PLASTAR Ti-50G, TOYO PLASTAR Ti-80G, TOYO PLASTAR TM-100G, TOYO PLASTAR TM-130G, TOYO PLASTAR TM-180G, TOYO PLASTAR TM-250G,
Toyo Plastar TM-145G, TOYO PLASTAR TM-200G, TOYO PLASTAR TM-385G
G2 Series:
TOYO PLASTAR Ti-15G2, TOYO PLASTAR Ti-30G2, TOYO PLASTAR Ti-50G2, TOYO PLASTAR Ti-80G2, TOYO PLASTAR TM100G2, TOYO Plastar TM-130G2, TOYO PLASTAR TM-180G2, TOYO PLASTAR TM-200G2, Toyo TM-250 G2, TOYO PLASTAR TM-350G2, TOYO PLASTAR TM-450G2
TOYO PLASTAR Ti-20G2, TOYO PLASTAR Ti-35G2, TOYO PLASTAR Ti-55G2, TOYO PLASTAR Ti-90G2, Toyo Plastar TM-110G2, TOYO PLASTAR TM-150G2, TOYO PLASTAR TM-200G2, TOYO PLASTAR TM-300G2, TOYO PLASTAR TM-400G2, TOYO PLASTAR TM-500G2
H Series:
TOYO PLASTAR Ti-30H, TOYO PLASTAR Ti-50H, TOYO PLASTAR Ti-80H, TOYO PLASTAR TM-100H(36mm), TOYO PLASTAR TM-130H(40mm), TOYO PLASTAR TM-180H(50mm),
TOYO PLASTAR Ti-35H, TOYO PLASTAR Ti-55H, TOYO PLASTAR Ti-90H, Toyo Plastar TM-110H, TOYO PLASTAR TM-150H, Toyo Plastar TM-200H, TOYO PLASTAR TM-245H, Toyo Plastar TM300H, Toyo Plastar TM400H, Toyo Plastar TM-500H.
H2 Series:
TOYO PLASTAR TM-180H2, TOYO PLASTAR TM-220H₂, TOYO PLASTAR TM-280H₂
TOYO PLASTAR TM-300H2,
TOYO PLASTAR TM-220HM
TOYO PLASTAR TM-350HW

Si Series:
Toyo SI-30, TOYO PLASTAR Si-50
Si-II Series:
TOYO PLASTAR Si-50II(28mm), TOYO PLASTAR Si-100II,
SI-III Series:
TOYO PLASTAR Si-50Ⅲ, TOYO PLASTAR SI-280III, TOYO PLASTAR Si-230Ⅲ(50mm, 55mm),
Toyo Plastar Si-110III
SI-IV Series:
TOYO PLASTAR Si-50Ⅳ, TOYO PLASTAR Si-280Ⅳ(50mm), TOYO PLASTAR Si-350Ⅳ,
SI-V Series:
TOYO PLASTAR Si-50V, TOYO PLASTAR SI-100V(36mm), TOYO PLASTAR SI-130V(40mm), TOYO PLASTAR Si-180Ⅴ(50mm), TOYO PLASTAR Si-450V,
Si-6 Series:
TOYO PLASTAR Si-130 6, TOYO PLASTAR Si-230 6, TOYO Si-230-6, TOYO PLASTAR Si-280 6, 
Si-6S series:
TOYO PLASTAR Si-450-6S