WLK油封, ISO 45001、ISO 14001 & ISO 9001证书的制造商，在制造农业机械、汽车和摩托车的油封、O形圈和衬套方面拥有50多年的经验和先进技术，还提供NSF认证的油封产品用于潜水机械帮浦或马达。

WLK Oil Seals, ISO45001, ISO14001 & ISO9001 certificate producer, more than 50years of experience and advanced technical in making Oil Seals, Orings & bushes for agricultural machinery, automobiles and motorcycles, also available with NSF Certificated Seals for submersible mechanical pump & motor.