Fabricant et fournisseur de Chaîne,Pignon,Engrenage,Rail d′engrenage,Engrenage à courroie,Engrenage à courroie en V,Boîte de vitesses,Coupleur de la Chine, offrant Heavy Duty Pitch 12.7mm Window Operator Chains Push-Out Window Chain for Hotel Systems, High Strength 9.525mm Pitch Window Operator Chains Push-Out Window Chain for Townhouse Window Systems, Industrial Grade 9.525mm Casement Window Sash Chains for Office Tower Windows de qualité etc.