companies Downloads. > About us > Quality & environment > News > General > Production > Quality > Location > Downloads Downloads Currentprint documents. Below all important company documents as PDF. Companybrochure. The Knorr & Macho GmbH as a strong partner for technical moulded rubber parts. Properties of elastomers. Chemical description, properties, temperature ranges and resistance, depending on the raw material classification. Machine park. Injection moulding machines manufacturing and appropriate equipment for finishing. Certificates. Quality & environmental management according to DIN EN ISO 9001 / 14001.