
5mm Hand Chain Manual Pulley Chain. Welded Chain Structure: Features welded chain structure with automatic machine manufacturing for clean welding. Heat Resistant Feature: Designed with heat resistant properties suitable for chain block applications. Precise Joint Dimensions: Chains joint length and width no more than 0.5mm for high precision. Low Twisted Angle: Twisted angle no more than 20 degrees under free conditions for smooth operation. Iron Material Construction: Constructed from durable iron material with electroplating surface treatment. Free Sample Availability: Provides 50cm sample for free with a minimum order quantity of 1000m. Fast Delivery Time: Delivery time ranges from 15 to 35 days after receiving payment for one container. OEM and ODM Services: Factory offers both OEM and ODM services for customized production needs.