Twist Lock suppliers Company profile Shandong saiqiang machinery manufacturing co.,ltd is a professional manufacturing of semi trailer parts in shandong province.we utilize the latest technology to ensure cost efficiency for our customers and we specialize in the supply of special spare for semi trailer in market such as landing gear 銆乫ifth wheel銆乲ing pin and so on. We have 30 specific products among 6 major varieties of our saiqiang brand, including fifth wheel銆乴anding gear銆?king pin銆乼wist lock and so on.our technology and quality adheres to national standard and we are one of the leaders in the field.we have also attained ISO9001 international quality system certification.Our advanced manufacturing methods comprehensive testing system,strict quality standards and excellent after-sales service have enabled us to become a respected brand.We adhere to the policy of quality first,customer foremost service”and we strive to provide complete service for our customer.Welcome new and old customer to visit our company and discuss business with us. Twist Lock suppliers website:http://www.sqtrailerparts.com/ website2:http://www.saiqiangm.com/