中原特钢股份有限公司
ZHONGYUAN SPECIAL STEEL CO.,LTD.Booth：E3903

Exhibit Profile：
ZYSCO is the main supplier of CNPC and Sinopec Group. The drill collar of ZYSCO is made of AISI 4145H modified chromium- molybdenum alloy steel to meet the API Specification and SY/T5144 Standards.

Exhibits show：