Write a paragraph about the picture on pg77 unit 8 of textbook
pg77 original sound - PG77
pg777 slot original sound - PG77
PG77 RIGID OUTLET TUBE ; Target product, 413077: CONTROL VALVE, PG-77 SERIES, 1 KGMIN, GREASE, RIGID OUTLET ; Target product, 413082: CONTROL VALVE, PG-77ZF