... 4.Fully automatic 5.Easy operate,energy saving, Since founded in 1987, ONETONE BLOW MOULDING MACHINERY CO., LTD has been specializing ... grade plastifying processing, coloring, printing, extrusion mould, hollow blow moulding techniques, mechanical engineering, pneumatic & hydraulic technology, automatic control ... used in chemical industry. HDPE huge accumulator blow moulding machine under blowing part