Internal units

Reference: TCFTXJ20MS

Reference: TCFTXJ20MW

Reference: TCFTXJ25MS

Reference: TCFTXJ25MW

Reference: TCFTXJ35MS

Reference: TCFTXJ35MW

Reference: TCFTXM20M

Reference: TCFTXM25M

Reference: TCFTXM35M

Reference: TCFTXM42M

Reference: TCFTXM50M