Qingzhou Dooharvest International Co., Ltd.  

Professional manufacturer of Honed tube, chrome rod, founded in 2004, operation under modern management system and technologies, ISO9001 certificated, It covers an area of 40, 000 sq. Meters. All processing controled and owned fully production facilities, also owned cold-drawn machine and heat treatment furnace. As one of the biggest honed tube, chrome rod manufacturer we engrossed in this field 15+ years, Rich experience in production and export, prefect products & services gained recognition of clients from 40 countries. Main Products: > Honed cylinder tube, SRB tube> Hard chrome rod, Piston rod> Precision seamless hydraulic pipe> Casting cylinder components Advantage: > Production facilities cover all processing with stick QC system. > Huge material purchasing reduce production cost and final rate. > Rich stock could be delivery fastest 3days. > Small quantity acceptable MOQ 200kg. > 100% inspection in each processing. > Long time quality guarantee, refund or replace if any q... [View More..]